获取input Date日期 时间，并得到前一天的Date值

 var endTime = time.substring(0, 10);

 var temp1 = new Date(endTime.replace(/-/g,"/"));

 temp1 = (temp1.getTime()-24*1000*60*60);

 var ddd = new Date(temp1);

 var day =ddd.getDate();

 if(ddd.getMonth()<10)
{

 var month = "0"+(ddd.getMonth()+1);

         }

 if(ddd.getDate()<10)
{

 day = "0"+ddd.getDate();

         }

 var startTime = ddd.getFullYear()+"-"+month+"-"+day;