Js获取当前的日期和时间

<!doctype html>
<html lang="en">
 <head>
  <meta charset="UTF-8">
  <title>获取当前时间</title>
 </head>
 <body>
  <script type="text/javascript">
    /**
     *获取当前时间
     *format=1精确到天
     *format=2精确到分
    */
    function getCurrentDate(format) {
      var now = new Date();
      var year = now.getFullYear(); //得到年份
      var month = now.getMonth();//得到月份
      var date = now.getDate();//得到日期
      var day = now.getDay();//得到周几
      var hour = now.getHours();//得到小时
      var minu = now.getMinutes();//得到分钟
      var sec = now.getSeconds();//得到秒
      month = month + 1;
      if (month < 10) month = "0" + month;
      if (date < 10) date = "0" + date;
      if (hour < 10) hour = "0" + hour;
      if (minu < 10) minu = "0" + minu;
      if (sec < 10) sec = "0" + sec;
      var time = "";
      //精确到天
      if(format==1){
        time = year + "-" + month + "-" + date;
      }
      //精确到分
      else if(format==2){
        time = year + "-" + month + "-" + date+ " " + hour + ":" + minu + ":" + sec;
      }
      return time;
    }
    alert(getCurrentDate(2));
  </script>
 </body>
</html>

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posted on 2019-09-02 22:25 黑夜开发者阅读(48614) 评论(0) 编辑收藏举报