简单封装JavaScript Date对象操作

来源：互联网发布：淘宝促销管理找不到编辑：程序博客网时间：2024/04/28 16:06

1、主要是封装了JavaScript中Date对象的操作：

新增了format方法，根据传进的时间格式返回相应的时间字符串。

* yyyy: 表示年
* MM：表示月
* dd：表示天
* HH: 表示小时
* mm：表示分钟
* ss：表示秒
* ww：表示星期(中文)
* we：表示星期(英文)

/*** 根据当前的日期，返回星期* ww：表示中文* we：表示英文*/Date.prototype.getWeekDay = function(language){var weekdayName;switch(this.getDay()){           case 0 : if (language != undefined && language != "" && language == "zh") {weekdayName = "星期日";} else {weekdayName = "Sunday";}break;case 1 : if (language != undefined && language != "" && language == "zh") {weekdayName = "星期一";} else {weekdayName = "Monday";}break;           case 2 : if (language != undefined && language != "" && language == "zh") {weekdayName = "星期二";} else {weekdayName = "Tuesday";}break;           case 3 : if (language != undefined && language != "" && language == "zh") {weekdayName = "星期三";} else {weekdayName = "Wednesday";}break;case 4 : if (language != undefined && language != "" && language == "zh") {weekdayName = "星期四";} else {weekdayName = "Thursday";}break;case 5 : if (language != undefined && language != "" && language == "zh") {weekdayName = "星期五";} else {weekdayName = "Friday";}break;case 6 : if (language != undefined && language != "" && language == "zh") {weekdayName = "星期六";} else {weekdayName = "Saturday";}break;}return weekdayName;};/*** 格式化获得的时间数字* 0----00* 1----01* 2----02*/Date.prototype.formatNumber = function(value){if (value >= 0 && value < 10) {value = "0" + value;}return value;};/*** 返回指定字符格式的时间字符串* @param format 返回的格式* yyyy: 表示年* MM：  表示月* dd：  表示天* HH:   表示小时* mm：  表示分钟* ss：  表示秒* ww：  表示星期(中文)* we：  表示星期(英文)*/Date.prototype.format =  function(format){try{// 年、月、日var year = this.getYear();var month = this.getMonth()+1;var day = this.getDate();// 时、分、秒var hour = this.getHours();       var minute = this.getMinutes();       var second = this.getSeconds();// yyyy-MM-dd HH:mm:ssif (/yyyy/.test(format)) {format = format.replace(/yyyy/, year);}if (/MM/.test(format)) {format = format.replace(/MM/, this.formatNumber(month));}if (/dd/.test(format)) {format = format.replace(/dd/, this.formatNumber(day));}if (/HH/.test(format)) {format = format.replace(/HH/, this.formatNumber(hour));}if (/mm/.test(format)) {format = format.replace(/mm/, this.formatNumber(minute));}if (/ss/.test(format)) {format = format.replace(/ss/, this.formatNumber(second));}if (/ww/.test(format)) {format = format.replace(/ww/, this.getWeekDay("zh"));}if (/we/.test(format)) {format = format.replace(/we/, this.getWeekDay("en"));}}catch(e){alert(e.name + ": " + e.message);}return format;};

2、相应的在Html中调用

<html><head><script src="dateclass.js"></script></head><body><div id="time"></div><script>var ds = new Date();alert(ds.format("yyyy-MM-dd HH:mm:ss we"));alert(ds.format("yyyy年MM月dd日  HH时mm分ss秒  ww"));</script></body></html>