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93
vue/src/lib/dd-moment.js
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93
vue/src/lib/dd-moment.js
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/*
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* @Author: daidai
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* @Date: 2021-12-16 14:40:18
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* @LastEditors: Please set LastEditors
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* @LastEditTime: 2022-04-19 14:44:14
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* @FilePath: \web-pc\src\lib\dd-moment.js
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*/
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const DDmoment = function (date) {
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let time;
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if (!date) {
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time = new Date()
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}else if(date){
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time=new Date(date);
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}
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return {
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time,
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format,
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subtract,
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getTime,
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}
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}
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/**
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* @content 前多少天
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* @param days 天 || years 年 || months 月 || weeks 周
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* @returns
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*/
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function subtract(num, type) {
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let time = this.time
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time.setTime(time.getTime()-getNeedTime(num, type))
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time=new Date(time)
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return {
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time,
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format,
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getTime
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}
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}
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/**
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* @param Yy年 || M 月 || Dd 日 || Hh 时 || m 分 || Ss 秒
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* @returns
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*/
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function format(fmt) {
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let date = this.time
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let ret;
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const opt = {
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"Y+": date.getFullYear().toString(), // 年
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"y+": date.getFullYear().toString(), // 年
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"M+": (date.getMonth() + 1).toString(), // 月
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"d+": date.getDate().toString(), // 日
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"D+": date.getDate().toString(), // 日
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"h+": date.getHours().toString(), // 时
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"H+": date.getHours().toString(), // 时
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"m+": date.getMinutes().toString(), // 分
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"S+": date.getSeconds().toString(), // 秒
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"s+": date.getSeconds().toString() // 秒
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// 有其他格式化字符需求可以继续添加,必须转化成字符串
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};
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for (let k in opt) {
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ret = new RegExp("(" + k + ")").exec(fmt);
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if (ret) {
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fmt = fmt.replace(ret[1], (ret[1].length == 1) ? (opt[k]) : (opt[k].padStart(ret[1].length, "0")))
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};
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};
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return fmt;
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}
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//时间戳转时间
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function getTime() {
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return new Date(this.time)
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}
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//获取需要的时间
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function getNeedTime(num, type) {
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let time=0
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switch (type) {
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case "days":
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time= 3600 * 1000 * 24 * num;
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break;
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case "years":
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time=3600 * 1000 * 24 *365 *num;
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break;
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case "months":
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time = 3600 * 1000 * 24 *30* num;
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break;
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case "weeks":
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time= 3600 * 1000 * 24 *7* num;
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break;
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default:
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break;
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}
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return time;
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}
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export default DDmoment
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