使用js获取当前年月日的方法及格式整理汇总

  /** 格式 YYYY/yyyy/YY/yy 表示年份

  * MM/M 月份

  * W/w 星期

  * dd/DD/d/D 日期

  * hh/HH/h/H 时间

  * mm/m 分钟

  * ss/SS/s/S 秒

  **/

  //---------------------------------------------------

  Date.prototype.Format = function(formatStr) {

  var str = formatStr;

  var Week = ['日','一','二','三','四','五','六'];

  str=str.replace(/yyyy|YYYY/,this.getFullYear());

  str=str.replace(/yy|YY/,(this.getYear() % 100)>9?(this.getYear() % 100).toString():'0' + (this.getYear() % 100));

  str=str.replace(/MM/,this.getMonth()>9?this.getMonth().toString():'0' + (this.getMonth()+1));

  str=str.replace(/M/g,this.getMonth());

  str=str.replace(/w|W/g,Week[this.getDay()]);

  str=str.replace(/dd|DD/,this.getDate()>9?this.getDate().toString():'0' + this.getDate());

  str=str.replace(/d|D/g,this.getDate());

  str=str.replace(/hh|HH/,this.getHours()>9?this.getHours().toString():'0' + this.getHours());

  str=str.replace(/h|H/g,this.getHours());

  str=str.replace(/mm/,this.getMinutes()>9?this.getMinutes().toString():'0' + this.getMinutes());

  str=str.replace(/m/g,this.getMinutes());

  str=str.replace(/ss|SS/,this.getSeconds()>9?this.getSeconds().toString():'0' + this.getSeconds());

  str=str.replace(/s|S/g,this.getSeconds());

  return str;

  }

  var date=new Date();

  var res=date.Format("yyyy-MM-dd HH:mm:ss 星期W");

  console.info(res); //2022-01-07 16:18:36 星期五