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@@ -0,0 +1,564 @@
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+/** 公共方法类 */
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+import CryptoJs from 'crypto-js'
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+import encHex from 'crypto-js/enc-hex'
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+
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+/**
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+ * 人性化时间显示
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+ *
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+ * @param {Object} datetime
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+ */
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+export function formateTime(datetime) {
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+ if (datetime == null) return ''
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+
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+ datetime = datetime.replace(/-/g, '/')
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+
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+ let time = new Date()
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+ let outTime = new Date(datetime)
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+ if (/^[1-9]\d*$/.test(datetime)) {
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+ outTime = new Date(parseInt(datetime) * 1000)
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+ }
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+
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+ if (
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+ time.getTime() < outTime.getTime() ||
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+ time.getFullYear() != outTime.getFullYear()
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+ ) {
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+ return parseTime(outTime, '{y}-{m}-{d} {h}:{i}')
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+ }
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+
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+ if (time.getMonth() != outTime.getMonth()) {
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+ return parseTime(outTime, '{m}-{d} {h}:{i}')
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+ }
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+
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+ if (time.getDate() != outTime.getDate()) {
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+ let day = outTime.getDate() - time.getDate()
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+ if (day == -1) {
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+ return parseTime(outTime, '昨天 {h}:{i}')
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+ }
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+
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+ if (day == -2) {
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+ return parseTime(outTime, '前天 {h}:{i}')
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+ }
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+
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+ return parseTime(outTime, '{m}-{d} {h}:{i}')
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+ }
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+
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+ let diff = time.getTime() - outTime.getTime()
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+
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+ if (time.getHours() != outTime.getHours() || diff > 30 * 60 * 1000) {
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+ return parseTime(outTime, '{h}:{i}')
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+ }
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+
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+ let minutes = outTime.getMinutes() - time.getMinutes()
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+ if (minutes == 0) {
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+ return '刚刚'
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+ }
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+
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+ minutes = Math.abs(minutes)
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+ return `${minutes}分钟前`
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+}
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+
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+/**
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+ * 格式化文件大小
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+ *
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+ * @param {String} value 文件大小(字节)
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+ */
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+export function formateSize(value) {
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+ if (null == value || value == '') {
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+ return '0'
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+ }
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+ let unitArr = ['Bytes', 'KB', 'MB', 'GB', 'TB', 'PB', 'EB', 'ZB', 'YB']
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+ let index = 0
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+ let srcsize = parseFloat(value)
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+ index = Math.floor(Math.log(srcsize) / Math.log(1000))
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+ let size = srcsize / Math.pow(1000, index)
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+ size = size.toFixed(2) //保留的小数位数
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+ return size + unitArr[index]
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+}
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+/**
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+ * 获取文件后缀名
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+ *
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+ * @param {String} fileName
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+ */
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+export function getFileExt(fileName) {
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+ let ext = fileName.split('.')
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+ ext = ext[ext.length - 1] // 获取文件后缀名
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+ return ext
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+}
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+
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+/**
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+ * 根据图片url下载图片
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+ * @param {String} imgsrc
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+ * @param {String} name
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+ */
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+export function downloadIamge(imgsrc, name) {
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+ //下载图片地址和图片名
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+ let image = new Image()
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+ // 解决跨域 Canvas 污染问题
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+ image.setAttribute('crossOrigin', 'anonymous')
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+ image.onload = function() {
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+ let canvas = document.createElement('canvas')
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+ canvas.width = image.width
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+ canvas.height = image.height
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+ let context = canvas.getContext('2d')
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+ context.drawImage(image, 0, 0, image.width, image.height)
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+ let url = canvas.toDataURL('image/png') //得到图片的base64编码数据
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+ let a = document.createElement('a') // 生成一个a元素
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+ let event = new MouseEvent('click') // 创建一个单击事件
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+ a.download = name || 'photo' // 设置图片名称
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+ a.href = url // 将生成的URL设置为a.href属性
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+ a.dispatchEvent(event) // 触发a的单击事件
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+ }
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+ image.src = imgsrc
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+}
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+
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+/**
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+ * 通过图片url获取图片大小
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+ *
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+ * @param {String} imgsrc 例如图片名: D8x5f13a53dbc4b9_350x345.png
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+ */
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+export function getImageInfo(imgsrc) {
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+ let data = {
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+ width: 0,
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+ height: 0,
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+ }
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+
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+ let arr = imgsrc.split('_')
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+ if (arr.length == 1) return data
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+
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+ let info = arr[arr.length - 1].match(/\d+x\d+/g)
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+ if (info == null) return data
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+
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+ info = info[0].split('x')
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+ return {
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+ width: parseInt(info[0]),
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+ height: parseInt(info[1]),
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+ }
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+}
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+
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+/**
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+ * 时间格式化方法
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+ *
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+ * @param {(Object|string|number)} time
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+ * @param {String} cFormat
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+ * @returns {String | null}
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+ */
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+export function parseTime(time, cFormat) {
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+ if (arguments.length === 0) {
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+ return null
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+ }
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+
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+ let date
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+ const format = cFormat || '{y}-{m}-{d} {h}:{i}:{s}'
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+
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+ if (typeof time === 'object') {
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+ date = time
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+ } else {
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+ if (typeof time === 'string' && /^[0-9]+$/.test(time)) {
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+ time = parseInt(time)
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+ }
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+ if (typeof time === 'number' && time.toString().length === 10) {
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+ time = time * 1000
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+ }
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+
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+ date = new Date(time.replace(/-/g, '/'))
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+ }
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+
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+ const formatObj = {
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+ y: date.getFullYear(),
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+ m: date.getMonth() + 1,
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+ d: date.getDate(),
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+ h: date.getHours(),
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+ i: date.getMinutes(),
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+ s: date.getSeconds(),
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+ a: date.getDay(),
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+ }
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+
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+ const time_str = format.replace(/{([ymdhisa])+}/g, (result, key) => {
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+ const value = formatObj[key]
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+ // Note: getDay() returns 0 on Sunday
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+ if (key === 'a') {
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+ return ['日', '一', '二', '三', '四', '五', '六'][value]
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+ }
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+
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+ return value.toString().padStart(2, '0')
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+ })
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+
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+ return time_str
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+}
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+
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+/**
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+ * 去除字符串控制
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+ *
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+ * @param {String} str
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+ */
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+export function trim(str, type = null) {
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+ if (type) {
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+ return str.replace(/(^\s*)|(\s*$)/g, '')
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+ } else if (type == 'l') {
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+ return str.replace(/(^\s*)/g, '')
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+ } else {
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+ return str.replace(/(\s*$)/g, '')
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+ }
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+}
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+
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+/**
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+ * 解析url中参数
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+ *
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+ * @param {String} url
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+ * @returns {Object}
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+ */
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+export function param2Obj(url) {
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+ const search = url.split('?')[1]
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+
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+ if (!search) return {}
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+
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+ return JSON.parse(
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+ '{"' +
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+ decodeURIComponent(search)
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+ .replace(/"/g, '\\"')
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+ .replace(/&/g, '","')
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+ .replace(/=/g, '":"')
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+ .replace(/\+/g, ' ') +
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+ '"}'
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+ )
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+}
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+
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+/**
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+ * @param {Object} json
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+ * @returns {Array}
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+ */
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+export function param(json) {
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+ if (!json) return ''
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+ return cleanArray(
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+ Object.keys(json).map(key => {
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+ if (json[key] === undefined) return ''
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+
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+ return encodeURIComponent(key) + '=' + encodeURIComponent(json[key])
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+ })
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+ ).join('&')
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+}
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+
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+/**
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+ * @param {Array} actual
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+ * @returns {Array}
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+ */
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+export function cleanArray(actual) {
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+ const newArray = []
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+ for (let i = 0; i < actual.length; i++) {
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+ if (actual[i]) {
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+ newArray.push(actual[i])
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+ }
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+ }
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+
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+ return newArray
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+}
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+
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+/**
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+ * @param {HTMLElement} element
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+ * @param {String} className
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+ */
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+export function toggleClass(element, className) {
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+ if (!element || !className) {
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+ return
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+ }
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+
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+ let classString = element.className
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+ let nameIndex = classString.indexOf(className)
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+ if (nameIndex === -1) {
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+ classString += '' + className
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+ } else {
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+ classString =
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+ classString.substr(0, nameIndex) +
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+ classString.substr(nameIndex + className.length)
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+ }
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+ element.className = classString
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+}
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+
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+/**
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+ * Check if an element has a class
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+ *
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+ * @param {HTMLElement} elm
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+ * @param {String} cls
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+ * @returns {Boolean}
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+ */
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+export function hasClass(ele, cls) {
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+ return !!ele.className.match(new RegExp('(\\s|^)' + cls + '(\\s|$)'))
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+}
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+
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+/**
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+ * Add class to element
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+ *
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+ * @param {HTMLElement} elm
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+ * @param {String} cls
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+ */
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+export function addClass(ele, cls) {
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+ if (!hasClass(ele, cls)) ele.className += ' ' + cls
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+}
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+
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+/**
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+ * Remove class from element
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+ *
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+ * @param {HTMLElement} elm
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+ * @param {String} cls
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+ */
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+export function removeClass(ele, cls) {
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+ if (hasClass(ele, cls)) {
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+ const reg = new RegExp('(\\s|^)' + cls + '(\\s|$)')
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+ ele.className = ele.className.replace(reg, ' ')
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+ }
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+}
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+
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+/**
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+ * 通过图片Url获取图片等比例缩放的宽度和高度信息
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+ *
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+ * @param {String} src
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+ * @param {Number} width
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+ */
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+export function imgZoom(src, width = 200) {
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+ const info = getImageInfo(src)
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+
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+ if (info.width < width) {
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+ return {
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+ width: `${info.width}px`,
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+ height: `${info.height}px`,
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+ }
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+ }
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+
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+ return {
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+ width: width + 'px',
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+ height: parseInt(info.height / (info.width / width)) + 'px',
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+ }
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+}
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+
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+/**
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+ * 获取浏览器光标选中内容
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+ *
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+ * @export
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+ * @returns
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+ */
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+export function getSelection() {
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+ return window.getSelection
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+ ? window.getSelection().toString()
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+ : document.selection.createRange().text
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+}
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+
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+/**
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+ * 剪贴板复制功能
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+ *
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+ * @param {String} value 复制内容
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+ * @param {Function} callback 复制成功回调方法
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+ */
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+export const copyTextToClipboard = (value, callback) => {
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+ let textArea = document.createElement('textarea')
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+ textArea.style.background = 'transparent'
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+ textArea.value = value
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+
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+ document.body.appendChild(textArea)
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+
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+ textArea.select()
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+
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+ try {
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+ document.execCommand('copy')
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+ if (callback) callback()
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+ } catch (err) {
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+ alert('Oops, unable to copy')
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+ }
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+
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+ document.body.removeChild(textArea)
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+}
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+
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+/**
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+ * 隐藏用户手机号中间四位
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+ *
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+ * @param {String} phone 手机号
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+ */
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+export function hidePhone(phone) {
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+ return phone.replace(/(\d{3})\d{4}(\d{4})/, '$1****$2')
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+}
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+
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+/**
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+ * 人性化显示时间
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+ *
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+ * @param {Object} datetime
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+ */
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+export function beautifyTime(datetime = '') {
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+ if (datetime == null) {
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+ return ''
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+ }
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+
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+ datetime = datetime.replace(/-/g, '/')
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+
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+ let time = new Date()
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+ let outTime = new Date(datetime)
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+ if (/^[1-9]\d*$/.test(datetime)) {
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+ outTime = new Date(parseInt(datetime) * 1000)
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+ }
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+
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+ if (time.getTime() < outTime.getTime()) {
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+ return parseTime(outTime, '{y}/{m}/{d}')
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+ }
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+
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+ if (time.getFullYear() != outTime.getFullYear()) {
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+ return parseTime(outTime, '{y}/{m}/{d}')
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+ }
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+
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+ if (time.getMonth() != outTime.getMonth()) {
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+ return parseTime(outTime, '{m}/{d}')
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+ }
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+
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+ if (time.getDate() != outTime.getDate()) {
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+ let day = outTime.getDate() - time.getDate()
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+ if (day == -1) {
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+ return parseTime(outTime, '昨天 {h}:{i}')
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+ }
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+
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+ if (day == -2) {
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+ return parseTime(outTime, '前天 {h}:{i}')
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+ }
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+
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+ return parseTime(outTime, '{m}-{d}')
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+ }
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+
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+ if (time.getHours() != outTime.getHours()) {
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+ return parseTime(outTime, '{h}:{i}')
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+ }
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+
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+ let minutes = outTime.getMinutes() - time.getMinutes()
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+ if (minutes == 0) {
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+ return '刚刚'
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+ }
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+
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+ minutes = Math.abs(minutes)
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+ return `${minutes}分钟前`
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+}
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+
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+export function getSort(fn) {
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+ return function(a, b) {
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+ let ret = 0
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+
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+ if (fn.call(this, a, b)) {
|
|
|
+ ret = -1
|
|
|
+ } else if (fn.call(this, b, a)) {
|
|
|
+ ret = 1
|
|
|
+ }
|
|
|
+
|
|
|
+ return ret
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * 批量排序
|
|
|
+ *
|
|
|
+ * @param {*} arr
|
|
|
+ */
|
|
|
+export function getMutipSort(arr) {
|
|
|
+ return function(a, b) {
|
|
|
+ let tmp
|
|
|
+ let i = 0
|
|
|
+
|
|
|
+ do {
|
|
|
+ tmp = arr[i++](a, b)
|
|
|
+ } while (tmp == 0 && i < arr.length)
|
|
|
+
|
|
|
+ return tmp
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * Url 替换超链接
|
|
|
+ *
|
|
|
+ * @param {String} text 文本
|
|
|
+ * @param {String} color 超链接颜色
|
|
|
+ */
|
|
|
+export function textReplaceLink(text, color = '#409eff') {
|
|
|
+ let exp = /(\b(https?|ftp|file):\/\/[-A-Z0-9+&@#\/%?=~_|!:,.;]*[-A-Z0-9+&@#\/%=~_|])/gi
|
|
|
+ return text.replace(
|
|
|
+ exp,
|
|
|
+ `<a href='$1' target="_blank" style="color:${color};text-decoration: revert;">$1</a >`
|
|
|
+ )
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * 防抖
|
|
|
+ *
|
|
|
+ * @param {*} func
|
|
|
+ * @param {*} wait
|
|
|
+ * @param {*} immediate
|
|
|
+ * @returns
|
|
|
+ */
|
|
|
+export function debounce(func, wait, immediate) {
|
|
|
+ let timeout
|
|
|
+
|
|
|
+ return function() {
|
|
|
+ let context = this
|
|
|
+ let args = arguments
|
|
|
+
|
|
|
+ if (timeout) clearTimeout(timeout) // timeout 不为null
|
|
|
+ if (immediate) {
|
|
|
+ let callNow = !timeout // 第一次会立即执行,以后只有事件执行后才会再次触发
|
|
|
+ timeout = setTimeout(function() {
|
|
|
+ timeout = null
|
|
|
+ }, wait)
|
|
|
+ if (callNow) func.apply(context, args)
|
|
|
+ } else {
|
|
|
+ timeout = setTimeout(function() {
|
|
|
+ func.apply(context, args)
|
|
|
+ }, wait)
|
|
|
+ }
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+export function sha256sum(file) {
|
|
|
+ const sha256 = CryptoJs.algo.SHA256.create()
|
|
|
+ return new Promise((resolve, reject) => {
|
|
|
+ const reader = new FileReader()
|
|
|
+ reader.onload = ({ target }) => {
|
|
|
+ const wordArray = CryptoJs.lib.WordArray.create(target.result)
|
|
|
+ sha256.update(wordArray)
|
|
|
+ resolve()
|
|
|
+ }
|
|
|
+ reader.readAsArrayBuffer(file)
|
|
|
+ })
|
|
|
+}
|
|
|
+
|
|
|
+export function hashFile (file) {
|
|
|
+ /**
|
|
|
+ * 使用指定的算法计算hash值
|
|
|
+ */
|
|
|
+ function hashFileInternal(file, alog) {
|
|
|
+ // 指定块的大小,这里设置为20MB,可以根据实际情况进行配置
|
|
|
+ const chunkSize = 20 * 1024 * 1024
|
|
|
+ let promise = Promise.resolve()
|
|
|
+ // 使用promise来串联hash计算的顺序。因为FileReader是在事件中处理文件内容的,必须要通过某种机制来保证update的顺序是文件正确的顺序
|
|
|
+ for (let index = 0; index < file.size; index += chunkSize) {
|
|
|
+ promise = promise.then(() => hashBlob(file.slice(index, index + chunkSize)))
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * 更新文件块的hash值
|
|
|
+ */
|
|
|
+ function hashBlob (blob) {
|
|
|
+ return new Promise((resolve, reject) => {
|
|
|
+ const reader = new FileReader()
|
|
|
+ reader.onload = ({ target }) => {
|
|
|
+ const wordArray = CryptoJs.lib.WordArray.create(target.result)
|
|
|
+ // 增量更新计算结果
|
|
|
+ alog.update(wordArray)
|
|
|
+ resolve()
|
|
|
+ }
|
|
|
+ reader.readAsArrayBuffer(blob)
|
|
|
+ })
|
|
|
+ }
|
|
|
+
|
|
|
+ // 使用promise返回最终的计算结果
|
|
|
+ return promise.then(() => encHex.stringify(alog.finalize()))
|
|
|
+ }
|
|
|
+
|
|
|
+ // 同时计算文件的sha256和md5,并使用promise返回
|
|
|
+ return Promise.all([hashFileInternal(file, CryptoJs.algo.SHA256.create()),
|
|
|
+ hashFileInternal(file, CryptoJs.algo.MD5.create())])
|
|
|
+ .then(([sha256sum, md5sum]) => ({
|
|
|
+ sha256sum,
|
|
|
+ md5sum
|
|
|
+ }))
|
|
|
+}
|