年月入时分秒，不足补0函数

// 传入一个毫秒数 

var date = new Date().getTime();
    console.log(normalTime(date));

    function normalTime (time){
    if( time ) {
      function add0(m){return m<10?'0'+m:m }
//needTime是整数，否则要parseInt转换
      var time = new Date(time);
      var y = time.getFullYear();
      var m = time.getMonth()+1;
      var d = time.getDate();
      var h = time.getHours();
      var mm = time.getMinutes();
      var s = time.getSeconds();
      return y+'-'+add0(m)+'-'+add0(d)+' '+add0(h)+':'+add0(mm)+':'+add0(s);
    }
  }