输入一个时间字符串和当前时间比较大小

 function gerRs(str){
   var flag = false;
   var s = str;     
         var d = new Date(Date.parse(s.replace(/-/g,"/")));  
   var now = new Date();
   var nowYear = now.getYear();
   var nowMonth = now.getMonth();
   var nowDay = now.getDay();
   var nowHours = now.getHours();
   var nowMinutes = now.getMinutes();
   var nowSecond = now.getSeconds();

   var aYear = d.getYear();
   var aMonth = d.getMonth();
   var aDay = d.getDay();
   var aHours = d.getHours();
   var aMinutes = d.getMinutes();
   var aSecond = d.getSeconds();
        
   if(aYear>nowYear){
    return 1;
   }else if(aYear==nowYear){
     if(aMonth>nowMonth){
       return 1;
     }else if(aMonth==nowMonth){
       if(aDay>nowDay){
     return 1;
    }else if(aDay==nowDay){
      if(aHours>nowHours){
       return 1;
      }else if(aHours==aHours){
        if(aMinutes>nowMinutes){
      return 1;
     }else if(aMinutes==nowMinutes){
       if(aSecond>nowSecond){
        return 1;
       }else if(aSecond==nowSecond){
         return 0;
       }else{
        return -1;
       }
     }else{
       return -1;
     }
      }else{
       return -1;
      }
    }else{
     return -1;
    }
     }else{
      return -1;
     }
   }else{
    return -1;
   }
  
  }

 

时间格式是“YYYY-MM-DD HH:mm:SS”---------------

 

 

输入时间大于当前时间返回1，小于当前时间返回-1，等于当前时间返回0