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;