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  • js jquery 取得周月年时间

    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);
    }
    var now = new Date(); //当前日期
    var nowDayOfWeek = now.getDay(); //今天本周的第几天
    var nowDay = now.getDate(); //当前日
    var nowMonth = now.getMonth(); //当前月
    var nowYear = now.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();

    //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;
    }
    //获得本周的开始日期
    function getWeekStartDate() {
    var weekStartDate = new Date(nowYear, nowMonth, nowDay - nowDayOfWeek);
    return formatDate(weekStartDate);
    }
    //获得本周的结束日期
    function getWeekEndDate() {
    var weekEndDate = new Date(nowYear, nowMonth, nowDay + (6 - nowDayOfWeek));
    return formatDate(weekEndDate);
    }
    //获得上周的开始日期
    function getLastWeekStartDate() {
    var weekStartDate = new Date(nowYear, nowMonth, nowDay - nowDayOfWeek - 7);
    return formatDate(weekStartDate);
    }
    //获得上周的结束日期
    function getLastWeekEndDate() {
    debugger;
    var weekEndDate = new Date(nowYear, nowMonth, nowDay - nowDayOfWeek - 1);
    return formatDate(weekEndDate);
    }
    //获得本月的开始日期
    function getMonthStartDate() {
    var monthStartDate = new Date(nowYear, nowMonth, 1);
    return formatDate(monthStartDate);
    }
    //获得本月的结束日期
    function getMonthEndDate() {
    var monthEndDate = new Date(nowYear, nowMonth, getMonthDays(nowMonth));
    return formatDate(monthEndDate);
    }
    //获得上月开始时间
    function getLastMonthStartDate() {
    var years = lastMonth == 11 ? (nowYear - 1) : nowYear;
    var lastMonthStartDate = new Date(years, lastMonth, 1);
    return formatDate(lastMonthStartDate);
    }
    //获得上月结束时间
    function getLastMonthEndDate() {
    var years = lastMonth == 11 ? (nowYear - 1) : nowYear;
    var lastMonthEndDate = new Date(years, lastMonth, getMonthDays(lastMonth));
    return formatDate(lastMonthEndDate);
    }

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  • 原文地址:https://www.cnblogs.com/gfbppy/p/10452081.html
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