js 获取时间得方法

var date = new Date();
      //月
      var month = date.getMonth();
      month = month + 1;
      if ((month)<10) {
       month = "0"+month;
      }
      //日
      var riqi = date.getDate();
      if (riqi<10) {
       riqi = "0"+riqi;
        
      }
      //小时
      var hour = date.getHours();
      if (hour<10) {
       hour = "0"+hour;
      }
      //分钟
      var minute = date.getMinutes();
      if (minute<10) {
       minute = "0"+minute;
      }
      //秒钟
      var second = date.getSeconds();
      if (second<10) {
       second = "0"+second;
      }

//时间的格式为：2018-01-01 01:01:01 
      var time = date.getFullYear()+"-"+month+"-"+riqi+" "+hour+":"+minute+":"+second;