js获取日期：前天、昨天、今天、明天、后天

来源：互联网发布：5g 知乎编辑：程序博客网时间：2024/05/16 05:36

<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"><title>js获取日期：前天、昨天、今天、明天、后天 </title></head><body><script language="JavaScript" type="text/javascript">function getDay(day){   var today = new Date();      var targetday_milliseconds=today.getTime() + 1000*60*60*24*day;           today.setTime(targetday_milliseconds); //注意，这行是关键代码        var tYear = today.getFullYear();   var tMonth = today.getMonth();   var tDate = today.getDate();   tMonth = doHandleMonth(tMonth + 1);   tDate = doHandleMonth(tDate);   return tYear+"-"+tMonth+"-"+tDate;}function doHandleMonth(month){   var m = month;   if(month.toString().length == 1){      m = "0" + month;   }   return m;}document.write("前天："+getDay(-2));document.write("<br />昨天："+getDay(-1));document.write("<br />今天："+getDay(0));document.write("<br />明天："+getDay(1));document.write("<br />后天："+getDay(2));document.write("<br />大后天："+getDay(3));</script></body></html>

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