//获取当前的前一周的时间

//获取当前的前一周的时间
    getprvweek(nowdate){
        var date = new Date(new Date(nowdate).getTime()-7*24*3600*1000);
        var seperator1 = "-";
        var seperator2 = ":";
        var month = date.getMonth() + 1<10? "0"+(date.getMonth() + 1):date.getMonth() + 1;
        var strDate = date.getDate()<10? "0" + date.getDate():date.getDate();
        var currentdate = date.getFullYear() + seperator1  + month  + seperator1  + strDate
                + " "  + date.getHours()  + seperator2  + date.getMinutes()
                + seperator2 + date.getSeconds();
	    return currentdate;
    }

VAR nowdate=2019-10-10 48:32:16
getprvweek(nowdate)

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