js获取当前日期，格式为YYYY-MM-DD

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获取当前日期

 function getNowFormatDate() {
        var date = new Date();
        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;
        return currentdate;
    }

获取当前日期时间

   var hh = now.getHours();            //时
   var mm = now.getMinutes();          //分
   var ss = now.getSeconds();          //分
   if(hh < 10)
	     clock += "0";
	
	  clock += hh + ":";
	  if (mm < 10)
	      clock += '0';
	  clock += mm + ":";

在小程序中查看效果