2019-08-24 12:29:03 +08:00
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2023-07-14 18:39:48 +08:00
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> Name
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2019-08-24 12:29:03 +08:00
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时间格式工具
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2023-07-14 18:39:48 +08:00
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> Author
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2019-08-24 12:29:03 +08:00
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huangsibo
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2023-07-14 18:39:48 +08:00
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> Source (javascript)
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2019-08-24 12:29:03 +08:00
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``` javascript
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/*
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* @Author: sibohuang
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* @Date: 2019-08-10 09:36:03
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* @LastEditors: sibohuang
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* @LastEditTime: 2019-08-10 09:45:11
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* @Description:
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* @Email: 3570411064@qq.com
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* @Company: igola
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*/
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/**
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* 将日期格式化成指定格式的字符串
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* @param date 要格式化的日期,不传时默认当前时间,也可以是一个时间戳
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* @param fmt 目标字符串格式,支持的字符有:y,M,d,q,w,H,h,m,S,默认:yyyy-MM-dd HH:mm:ss
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* @returns 返回格式化后的日期字符串
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*/
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$.formatDate = function (date, fmt) {
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date = !date ? new Date() : date;
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date = typeof date === 'number' ? new Date(date) : date;
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fmt = fmt || 'yyyy-MM-dd HH:mm:ss';
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var obj =
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{
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'y': date.getFullYear(), // 年份,注意必须用getFullYear
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'M': date.getMonth() + 1, // 月份,注意是从0-11
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'd': date.getDate(), // 日期
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'q': Math.floor((date.getMonth() + 3) / 3), // 季度
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'w': date.getDay(), // 星期,注意是0-6
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'H': date.getHours(), // 24小时制
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'h': date.getHours() % 12 == 0 ? 12 : date.getHours() % 12, // 12小时制
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'm': date.getMinutes(), // 分钟
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's': date.getSeconds(), // 秒
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'S': date.getMilliseconds() // 毫秒
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};
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var week = ['天', '一', '二', '三', '四', '五', '六'];
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for (var i in obj) {
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fmt = fmt.replace(new RegExp(i + '+', 'g'), function (m) {
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var val = obj[i] + '';
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if (i == 'w') return (m.length > 2 ? '星期' : '周') + week[val];
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for (var j = 0, len = val.length; j < m.length - len; j++) val = '0' + val;
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return m.length == 1 ? val : val.substring(val.length - m.length);
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});
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}
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return fmt;
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}
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/**
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* 将字符串解析成日期
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* @param str 输入的日期字符串,如'2014-09-13'
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* @param fmt 字符串格式,默认'yyyy-MM-dd',支持如下:y、M、d、H、m、s、S,不支持w和q
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* @returns 解析后的Date类型日期
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*/
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$.parseDate = function(str, fmt) {
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fmt = fmt || 'yyyy-MM-dd';
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var obj = {y: 0, M: 1, d: 0, H: 0, h: 0, m: 0, s: 0, S: 0};
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fmt.replace(/([^yMdHmsS]*?)(([yMdHmsS])\3*)([^yMdHmsS]*?)/g, function (m, $1, $2, $3, $4, idx, old) {
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str = str.replace(new RegExp($1 + '(\\d{' + $2.length + '})' + $4), function (_m, _$1) {
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obj[$3] = parseInt(_$1);
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return '';
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});
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return '';
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});
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obj.M--; // 月份是从0开始的,所以要减去1
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var date = new Date(obj.y, obj.M, obj.d, obj.H, obj.m, obj.s);
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if (obj.S !== 0) date.setMilliseconds(obj.S); // 如果设置了毫秒
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return date;
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}
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/**
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* 将一个日期格式化成友好格式,比如,1分钟以内的返回“刚刚”,
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* 当天的返回时分,当年的返回月日,否则,返回年月日
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* @param {Object} date
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*/
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$.formatDateToFriendly = function(date) {
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date = date || new Date();
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date = typeof date === 'number' ? new Date(date) : date;
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invariant(date instanceof Date, 'date is not date type');
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var now = new Date();
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if ((now.getTime() - date.getTime()) < 60 * 1000) return '刚刚'; // 1分钟以内视作“刚刚”
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var temp = this.formatDate(date, 'yyyy年M月d');
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if (temp == this.formatDate(now, 'yyyy年M月d')) return this.formatDate(date, 'HH:mm');
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if (date.getFullYear() == now.getFullYear()) return this.formatDate(date, 'M月d日');
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return temp;
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}
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/**
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* 将一段时长转换成友好格式,如:
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* 147->“2分27秒”
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* 1581->“26分21秒”
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* 15818->“4小时24分”
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* @param {Object} second
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*/
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$.formatDurationToFriendly = function(second) {
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if (second < 60) return second + '秒';
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else if (second < 60 * 60) return (second - second % 60) / 60 + '分' + second % 60 + '秒';
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else if (second < 60 * 60 * 24) return (second - second % 3600) / 60 / 60 + '小时' + Math.round(second % 3600 / 60) + '分';
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return (second / 60 / 60 / 24).toFixed(1) + '天';
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}
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/**
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* 将时间转换成MM:SS形式
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*/
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$.formatTimeToFriendly = function(second) {
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var m = Math.floor(second / 60);
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m = m < 10 ? ( '0' + m ) : m;
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var s = second % 60;
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s = s < 10 ? ( '0' + s ) : s;
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return m + ':' + s;
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}
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/**
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* 计算2日期之间的天数,用的是比较毫秒数的方法
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* 传进来的日期要么是Date类型,要么是yyyy-MM-dd格式的字符串日期
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* @param date1 日期一
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* @param date2 日期二
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*/
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$.countDays = function(date1, date2) {
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var fmt = 'yyyy-MM-dd';
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// 将日期转换成字符串,转换的目的是去除“时、分、秒”
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if (date1 instanceof Date && date2 instanceof Date) {
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date1 = this.formatDate(date1, fmt);
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date2 = this.formatDate(date2, fmt);
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}
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if (typeof date1 === 'string' && typeof date2 === 'string') {
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date1 = this.parseDate(date1, fmt);
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date2 = this.parseDate(date2, fmt);
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return (date1.getTime() - date2.getTime()) / (1000 * 60 * 60 * 24);
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}
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else {
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console.error('参数格式无效!');
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return 0;
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}
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}
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function main() {
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Log($.formatDate(new Date()))
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// Log($.parseDate(new Date()))
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// Log($.formatDateToFriendly(new Date()))
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// Log($.formatTimeToFriendly(new Date()))
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// Log($.formatDurationToFriendly(new Date()))
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// Log($.countDays(new Date()))
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}
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```
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2023-07-14 18:39:48 +08:00
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> Detail
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2019-08-24 12:29:03 +08:00
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https://www.fmz.com/strategy/161505
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2023-07-14 18:39:48 +08:00
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> Last Modified
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2019-08-24 12:29:03 +08:00
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2019-08-10 09:45:12
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