js--------1.时间

 //获取当前时间 yyyy-MM-dd
 function getNowFormatDate() {
     var date = new Date();
     var seperator1 = "-";
     var seperator2 = ":";
     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 = date.getFullYear() + seperator1 + month + seperator1 + strDate;
     return currentdate;
 }

 //获取当前日期，个位数用0占位
 function getNowWithLine() {
     var date = new Date();
     var seperator1 = "/";
     var seperator2 = ":";
     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 = date.getFullYear() + seperator1 + month + seperator1 + strDate;
     return currentdate;
 }

 //获取指定日期的前几天日期或后几天日期
 function getDateFromCurrentDate(fromDate, dayInterval) {
 
     var curDate = new Date(Date.parse(fromDate.replace(/-/g, "/")));
     curDate.setDate(curDate.getDate() + dayInterval);
     var year = curDate.getFullYear();
     var month = (curDate.getMonth() + 1) < 10 ? "0" + (curDate.getMonth() + 1) : (curDate.getMonth() + 1);
     var day = curDate.getDate() < 10 ? "0" + curDate.getDate() : curDate.getDate();
     return year + "-" + month + "-" + day;
 };

 //当前日期加n天 返回日期 yyyy-MM-dd
 function getFormatDate(addDay) {
     var date = new Date();
     date.setDate(date.getDate() + addDay);
     var seperator1 = "-";
     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 = date.getFullYear() + seperator1 + month + seperator1 + strDate;
     return currentdate;
 }