SOURCE

console 命令行工具 X clear

                    
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console
Date.prototype.format = function(fmt) { //author: meizz 
  var o = {
    "M+": this.getMonth() + 1,
    //月份 
    "d+": this.getDate(),
    //日 
    "h+": this.getHours(),
    //小时 
    "m+": this.getMinutes(),
    //分 
    "s+": this.getSeconds(),
    //秒 
    "q+": Math.floor((this.getMonth() + 3) / 3),
    //季度 
    "S": this.getMilliseconds() //毫秒 
  };
  if (/(y+)/.test(fmt)) fmt = fmt.replace(RegExp.$1, (this.getFullYear() + "").substr(4 - RegExp.$1.length));
  for (var k in o) if (new RegExp("(" + k + ")").test(fmt)) fmt = fmt.replace(RegExp.$1, (RegExp.$1.length == 1) ? (o[k]) : (("00" + o[k]).substr(("" + o[k]).length)));
  return fmt;
} 

// 测试

var time1 =new Date(1924820992000).format("yyyy-MM-dd");
console.log(time1);