var date = new Date();

? // 默認(rèn)一個(gè)月的數(shù)據(jù)獲取時(shí)間開始

? var seperator1 = "-";

? var year = date.getFullYear();

? var month = date.getMonth() + 1;

? var strDate = date.getDate();

? if (month >= 1 && month <= 9) {

? month = "0" + month;

? }

? if (strDate >= 0 && strDate <= 9) {

? strDate = "0" + strDate;

? }

? // var currentdate = year + seperator1 + month + seperator1 + strDate;

? var lcurrentdate = year + seperator1 + month + seperator1 + strDate;

? //- 是向前倒推， + 是向后推? // 通過減去對(duì)應(yīng)的天數(shù)來獲取日期

? var weekdate = new Date(date.getTime() + 24 * 60 * 60 * 1000 * 30);

? var lastyear = weekdate.getFullYear();

? var lastmonth = weekdate.getMonth() + 1;

? var lastDate = weekdate.getDate();

? if (lastmonth >= 1 && lastmonth <= 9) {

? lastmonth = "0" + lastmonth;

? }

? if (lastDate >= 0 && lastDate <= 9) {

? lastDate = "0" + lastDate;

? }

? var currentdate = lastyear + seperator1 + lastmonth + seperator1 + lastDate;