获取所需日期的计算方法

Html

Css

单击按钮显示本月截止日期。代码中有获取季度时间，获取上月时间，获取本周时间，获取某月天数等等非常全，请根据自己需要调用。

$(function() {
    $("#btn").on('click', function() {
        var ss = getMonthEndDate();
        alert('本月截止日期：' + ss);
    })
});
var thisNow = new Date(); //当前日期
var nowDayOfWeek = thisNow.getDay(); //今天本周的第几天
var thisNowDay = thisNow.getDate(); //当前日
var nowMonth = thisNow.getMonth(); //当前月
var nowYear = thisNow.getYear(); //当前年
nowYear += (nowYear < 2000) ? 1900 : 0; //

var lastMonthDate = new Date(); //上月日期
lastMonthDate.setDate(1);
lastMonthDate.setMonth(lastMonthDate.getMonth() - 1);
var lastYear = lastMonthDate.getYear();
var lastMonth = lastMonthDate.getMonth();

//格局化日期：yyyy-MM-dd
function formatDate(date) {
    var myyear = date.getFullYear();
    var mymonth = date.getMonth() + 1;
    var myweekday = date.getDate();

if (mymonth < 10) {
        mymonth = "0" + mymonth;
    }
    if (myweekday < 10) {
        myweekday = "0" + myweekday;
    }
    return (myyear + "-" + mymonth + "-" + myweekday);
}

//获得某月的天数
function getMonthDays(myMonth) {
    var monthStartDate = new Date(nowYear, myMonth, 1);
    var monthEndDate = new Date(nowYear, myMonth + 1, 1);
    var days = (monthEndDate - monthStartDate) / (1000 * 60 * 60 * 24);
    return days;
}

//获得本季度的开端月份
function getQuarterStartMonth() {
    var quarterStartMonth = 0;
    if (nowMonth < 3) {
        quarterStartMonth = 0;
    }
    if (2 < nowMonth && nowMonth < 6) {
        quarterStartMonth = 3;
    }
    if (5 < nowMonth && nowMonth < 9) {
        quarterStartMonth = 6;
    }
    if (nowMonth > 8) {
        quarterStartMonth = 9;
    }
    return quarterStartMonth;
}

//获得本周的开端日期
function getWeekStartDate() {
    var weekStartDate = new Date(nowYear, nowMonth, thisNowDay - nowDayOfWeek);
    return formatDate(weekStartDate);
}

//获得本周的停止日期
function getWeekEndDate() {
    var weekEndDate = new Date(nowYear, nowMonth, thisNowDay + (6 - nowDayOfWeek));
    return formatDate(weekEndDate);
}

//获得本月的开端日期
function getMonthStartDate() {
    var monthStartDate = new Date(nowYear, nowMonth, 1);
    return formatDate(monthStartDate);
}

//获得本月的停止日期
function getMonthEndDate() {
    var monthEndDate = new Date(nowYear, nowMonth, getMonthDays(nowMonth));
    return formatDate(monthEndDate);
}

//获得上月开端时候
function getLastMonthStartDate() {
    var lastMonthStartDate = new Date(nowYear, lastMonth, 1);
    return formatDate(lastMonthStartDate);
}

//获得上月停止时候
function getLastMonthEndDate() {
    var lastMonthEndDate = new Date(nowYear, lastMonth, getMonthDays(lastMonth));
    return formatDate(lastMonthEndDate);
}

//获得本季度的开端日期
function getQuarterStartDate() {

var quarterStartDate = new Date(nowYear, getQuarterStartMonth(), 1);
    return formatDate(quarterStartDate);
}

//或的本季度的停止日期
function getQuarterEndDate() {
    var quarterEndMonth = getQuarterStartMonth() + 2;
    var quarterStartDate = new Date(nowYear, quarterEndMonth, getMonthDays(quarterEndMonth));
    return formatDate(quarterStartDate);
}

↑上面代码改变，会自动显示代码结果 jQuery调用版本：1.11.3

立即下载

获取所需日期的计算方法



代码描述：可以获取本周起始日期，本月起始日期，以及所需具体日期的通用方法

0

最新

发表评论全部评论

暂时没有评论！

登录后才可以评论

30秒后在评论吧!

PROMULGATOR

小瘦

相关代码

获取所需日期的计算方法

最新