写了一个计算核酸时间差的代码

wwwwwllllk · 发表于 2022-4-30 20:54:28


<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>计算核酸时间差</title>
    <link
      rel="stylesheet"
      href="https://cdn.jsdelivr.net/npm/flatpickr/dist/flatpickr.min.css"
    />
    <script src="https://cdn.jsdelivr.net/npm/flatpickr"></script>
  </head>
  <body>
    <div>
      <span>请输入你做核酸的时间:</span>
      <input class="selector"></input>
    </div>
    <div>
      <span>当前时间:</span>
      <span class="currentTime"></span>
    </div>
    <button onclick="computer()">点击计算时间差</button>
    <script>
      let divSelector = document.querySelector(".selector");
      let selectTime;
      divSelector.flatpickr({ enableTime: true, dateFormat: "Y-m-d H:i",  onChange: function(selectedDates, dateStr, instance) {
        selectTime = dateStr;
      }, });
      var checkTime = function (i) {
        if (i < 10) {
          i = "0" + i;
        }
        return i;
      };
      var showtime = function () {
        var nowdate = new Date();
        var year = nowdate.getFullYear(),
          month = nowdate.getMonth() + 1,
          date = nowdate.getDate(),
          day = nowdate.getDay(),
          // week我不需要我暂时先把它注释掉
          // week = [
          //   "星期日",
          //   "星期一",
          //   "星期二",
          //   "星期三",
          //   "星期四",
          //   "星期五",
          //   "星期六",
          // ],
          h = nowdate.getHours(),
          m = nowdate.getMinutes(),
          s = nowdate.getSeconds(),
          h = checkTime(h),
          m = checkTime(m),
          s = checkTime(s);
        return year + "-" + month + "-" + date + " " + h + ":" + m + ":" + s;
      };
      let currentTime = document.getElementsByClassName("currentTime");
      currentTime[0].innerText =showtime();
      setInterval(() => {
        let currentTime = document.getElementsByClassName("currentTime");
        currentTime[0].innerText =showtime();
      }, 1000);

      function getHour(s1, s2) {
        var reDate = /\d{4}-\d{1,2}-\d{1,2} /;
        // test是用了判断s1的格式和regData是否匹配
        // 里面的正则2018-1-1是不合适的时候会选择它,因为我可以不选择年月日可以直接输入时间也是可以使用的
        s1 = new Date(
          (reDate.test(s1) ? s1 : "2018-1-1 " + s1).replace(/-/g, "/")
        );
        s2 = new Date(
          (reDate.test(s2) ? s2 : "2018-1-1 " + s2).replace(/-/g, "/")
        );
        var ms = s2.getTime() - s1.getTime();
        if (ms < 0) return 0;
        return Math.floor(ms / 1000 / 60 / 60); //小时
      }

      function computer(){
        console.log(selectTime);
         alert("相差"+getHour(selectTime, currentTime[0].innerText)+"小时");
      }
    </script>
  </body>
</html>

写了一个计算核酸时间差的代码

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