How to display the dates of last week and last month in javascript

How to display the dates of last week and last month in javascript_javascript skills

WBOY

Release： 2016-05-16 15:16:21

Original

1258 people have browsed it

The example in this article introduces the implementation code of javascript a week ago and a month ago. It conducts a simple analysis of javascript date processing and shares it with you for your reference. The specific content is as follows

<html>
<head>
 <title></title>
 <script src="../Script/jQuery/jquery-1.6.2.min.js" type="text/javascript"></script>
 <script src="../Script/MTHCRMWidget/MTHCRMWidget.js" type="text/javascript"></script>
 <script type="text/javascript">
  $(function () {
   myClick();//点击事件触发
  })

  //专门包装点击事件；
  function myClick() {
   $(".tbBtn").click(function () {
    var sid = $(this).attr("id");
    var agoDate = "";
    var Cdate = new Date();
    if (sid == "CbtnNull") {
     $("#txtCallCycleBegin").val("");
     $("#txtCallCyclecurrend").val("");
    } else if (sid == "CbtnMoon") {
     agoDate = ProcessDate(30);
     $("#txtCallCycleBegin").val("{0}-{1}-{2}".format(agoDate.Year, agoDate.Moon, agoDate.Day));
     $("#txtCallCyclecurrend").val("{0}-{1}-{2}".format(Cdate.getFullYear(), Cdate.getMonth() + 1, Cdate.getDate()));
    } else {
     agoDate = ProcessDate(7);
     $("#txtCallCycleBegin").val("{0}-{1}-{2}".format(agoDate.Year, agoDate.Moon, agoDate.Day));
     $("#txtCallCyclecurrend").val("{0}-{1}-{2}".format(Cdate.getFullYear(), Cdate.getMonth() + 1, Cdate.getDate()));
    }
   })
  }

  //处理日期的函数，返回一个字面量；
  function ProcessDate(type) {
   //1.0获取现在时间的年月日：
   var currentTime = new Date("2016-01-02"); //得到当前的时间
   var currentYear = currentTime.getFullYear(); //得到当前的年份
   var currentMoon = currentTime.getMonth() + 1; //得到当前的月份（系统默认为0-11，所以要加1才算是当前的月份）
   var currentDay = currentTime.getDate(); //得到当前的天数

   //2.0获取当前时间的一个月内的年月日：（一个月内的大众业务需求为：当前时间的月份-1，当前时间的天数+1）
   var agoDay = "";
   var agoMoon = currentMoon;
   var agoYear = currentYear;
   var max = "";
   switch (type) {
    case 30:
     agoDay = currentDay + 1;
     agoMoon = currentMoon - 1;
     max = new Date(agoYear, agoMoon, 0).getDate(); //获取上个月的总天数
     break;
    case 7:
     agoDay = currentDay - 6;
     if (agoDay < 0) {
      agoMoon = currentMoon - 1;//月份减1
      max = new Date(agoYear, agoMoon, 0).getDate(); //获取上个月的总天数
      agoDay = max + agoDay;//天数在上个月的总天数的基础上减去负数
     }
     break;
   }

   //3.0对处理的年月日作逻辑判断


   //如果beginDay > max（如果是当前时间的天数+1后的数值超过了上个月的总天数： 天数变为1，月份增加1）
   if (agoDay > max) {
    agoDay = 1;
    agoMoon += 1;
   }

   //如果月份当月为1月的时候， 那么一个月内： 年：-1 月：12 日：依然不变 
   if (agoMoon == 0) {
    agoMoon = 12;
    agoYear = currentYear - 1;
   }

   //4.0对已经处理好的数据作格式处理（单位数则自动补零）
   currentMoon = Appendzero(currentMoon);
   currentDay = Appendzero(currentDay);
   agoMoon = Appendzero(agoMoon);
   agoDay = Appendzero(agoDay);

   //5.0帮助代码
   console.log("当前时间为：{0}-{1}-{2}".format(currentYear, currentMoon, currentDay));
   console.log("一个月前的时间为{0}-{1}-{2}".format(agoYear, agoMoon, agoDay));

   return { "Year": agoYear, "Moon": agoMoon, "Day": agoDay };
  }

  //处理各位数为零的数字（单位数则加0）
  function Appendzero(obj) {
   if (obj < 10) {
    return "0" + obj;
   } else { 
    return obj;
   }
  }

 </script>
</head>
<body>
 <input type="button" class="tbBtn" id="CbtnNull" style="background-color:#e3e3e3" value="不限"/>
 <input type="button" class="tbBtn" id="CbtnMoon" style="width: 80px; margin-left: 5px; margin-right: 5px;" value="一个月内"/>
 <input type="button" class="tbBtn" id="CbtnWeek" style="width: 80px; margin-left: 5px; margin-right: 5px;" value="一周内"/>
 <input id = "txtCallCycleBegin" type="text"/>
 <input id = "txtCallCyclecurrend" type="text"/>
</body>
</html>

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The above is the entire content of this article. I hope it can help everyone better solve the problem of JavaScript date processing.