zoukankan      html  css  js  c++  java
  • 利用js 获取本日 本周 本月时间代码

    function showToDay()     
    {     
        var Nowdate=new Date();     
        M=Number(Nowdate.getMonth())+1     
        alert(Nowdate.getMonth()+"月,"+Nowdate.getDate()+"号,星期"+Nowdate.getDay());     
        return Nowdate.getYear()+"-"+M+"-"+Nowdate.getDate();     
    }
    function showTomorrow()
    {     
        var tom=new Date();     
        tom.setDate(tom.getDate()+1);     
        M=Number(tom.getMonth())+1     
        return tom.getYear()+"-"+M+"-"+tom.getDate();     
    }

    本周第一天

    function showWeekFirstDay()     
    {     
        var Nowdate=new Date();     
        var WeekFirstDay=new Date(Nowdate-(Nowdate.getDay()-1)*86400000);     
        M=Number(WeekFirstDay.getMonth())+1     
        return WeekFirstDay.getYear()+"-"+M+"-"+WeekFirstDay.getDate();     
    }

    本周最后天

    function showWeekLastDay()     
    {     
        var Nowdate=new Date();     
        var WeekFirstDay=new Date(Nowdate-(Nowdate.getDay()-1)*86400000);     
        var WeekLastDay=new Date((WeekFirstDay/1000+6*86400)*1000);     
        M=Number(WeekLastDay.getMonth())+1     
        return WeekLastDay.getYear()+"-"+M+"-"+WeekLastDay.getDate();     
    }

    本月第一天

    function showMonthFirstDay()     
    {     
        var Nowdate=new Date();     
        var MonthFirstDay=new Date(Nowdate.getYear(),Nowdate.getMonth(),1);     
        M=Number(MonthFirstDay.getMonth())+1     
        return MonthFirstDay.getYear()+"-"+M+"-"+MonthFirstDay.getDate();     
    }

    本月最后一天

    function showMonthLastDay()     
    {     
        var Nowdate=new Date();     
        var MonthNextFirstDay=new Date(Nowdate.getYear(),Nowdate.getMonth()+1,1);     
        var MonthLastDay=new Date(MonthNextFirstDay-86400000);     
        M=Number(MonthLastDay.getMonth())+1     
        return MonthLastDay.getYear()+"-"+M+"-"+MonthLastDay.getDate();     
    }
    function getTime(s)
    {     
        var time1=document.getElementById("num1");     
        var time2=document.getElementById("num2");     
        if(s==1){     
            //本日时间     
            time1.value=showToDay();     
            //alert("今日:"+time1.value);     
            time2.value=showTomorrow();     
            //alert("今日:"+time2.value);     
        }else if(s==2){     
            //本周时间     
            time1.value=showWeekFirstDay();     
            //alert("本月第一天:"+time1.value);     
            time2.value=showWeekLastDay();     
            //alert("本月最后一天:"+time2.value);     
        }else{     
            //本月时间     
            time1.value=showMonthFirstDay();     
            //alert("本月第一天"+time1.value);     
            time2.value=showMonthLastDay();     
            //alert("本月最后一天"+time2.value);     
        }
    }
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  • 原文地址:https://www.cnblogs.com/KingUp/p/5740616.html
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