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js获取当前日期和前后“N天”日期，严谨版_js 当前日期的365天

作者：从前慢现在也慢 | 2024-03-26 01:33:24

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js 当前日期的365天

<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>

//日期获取
function getNowDate() {

   var sign1 = "-";
   var sign2 = ":";
   //当前日期
   var date = new Date();
   var nowYear = date.getFullYear() // 年
   var nowMonth = date.getMonth() + 1; // 月
   var nowDay = date.getDate(); // 日
   var nowHour = date.getHours(); // 时
   var nowMinutes = date.getMinutes(); // 分
   var nowSeconds = date.getSeconds() // 秒

   // 给一位数数据前面补加“0”
   if (nowMonth < 10) {
      nowMonth = "0" + nowMonth;
   }
   if (nowDay < 10) {
       nowDay = "0" + nowDay;
   }
   if (nowHour < 10) {
       nowHour = "0" + nowHour;
   }
   if (nowMinutes < 10) {
      nowMinutes = "0" + nowMinutes;
   }
   if (nowSeconds < 10) {
       nowSeconds = "0" + nowSeconds;
   }

   //前10天
   var pastTime = new Date(date - 1000 * 60 * 60 * 24 * 10);//最后“10”数字根据需求修改，代表10天
   //var pastTime = new Date(date + 1000 * 60 * 60 * 24 * 10);//“+”表示当前日期后“10”天
   var pastYear = pastTime.getFullYear() // 年
   var pastMonth = pastTime.getMonth() + 1; // 月
   var pastDay = pastTime.getDate(); // 日
   var pastHour = pastTime.getHours(); // 时
   var pastMinutes = pastTime.getMinutes(); // 分
   var pastSeconds = pastTime.getSeconds() // 秒

   // 给一位数数据前面补加“0”
   if (pastMonth < 10) {
      pastMonth = "0" + pastMonth;
   }
   if (pastDay < 10) {
       pastDay = "0" + pastDay;
   }
   if (pastHour < 10) {
       pastHour = "0" + pastHour;
   }
   if (pastMinutes < 10) {
      pastMinutes = "0" + pastMinutes;
   }
   if (pastSeconds < 10) {
       pastSeconds = "0" + pastSeconds;
   }

   //当前日期
   var endTime = nowYear + sign1 + nowMonth + sign1 + nowDay + " " + nowHour + sign2 + nowMinutes + sign2 + nowSeconds;
   //前一个月日期
   var startTime = pastYear + sign1 + pastMonth + sign1 + pastDay + " " + pastHour + sign2 + pastMinutes + sign2 + pastSeconds;

   var infoTime = {"startTime":startTime,"endTime":endTime};

   return infoTime;
}

</script>
</head>
<body οnlοad="setallurl()">

   前一个月:<input id="startTime" type="text" value="" /></br>
       当前日期:<input id="endTime" type="text" value="" />

</body>
</html>

结果展示：

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