很多地方都要用到日历控件，比如生日、出发到达日期等等，本文就来介绍一下vue3日历控件的具体实现，具体如下

效果如下：

<template>
  <div class="cal_con" style="margin-left:px">
    <div class="cal_header">
      <!-- 顶部左侧 -->
      <div class="cal_header_left">
        <div class="cal_header_left_top">
          <span class="cal_h_time">{{ year }}</span>
        </div>
        <div class="cal_header_left_bottom">
          <div class="cal_h_left">
            <div class="cal_h_btn" @click="preYear">
              <svg class="cal_h_l_icon">
                <!-- 画线条 -->
                <polyline
                    points=",0 2,4 6,8"
                    style="fill: none; stroke: #ffffff; stroke-width:"
                />
                <!-- 画线条 -->
                <polyline
                    points=",0 6,4 10,8"
                    style="fill: none; stroke: #ffffff; stroke-width:"
                />
              </svg>
            </div>
            <div class="cal_h_btn" @click="preMonth">
              <svg class="cal_h_l_icon">
                <polyline
                    points=",0 2,4 6,8"
                    style="fill: none; stroke: #ffffff; stroke-width:"
                />
              </svg>
            </div>
          </div>
          <div class="cal_h_center">
            <span class="cal_h_time">{{ month }}</span>
          </div>
          <div class="cal_h_right">
            <div class="cal_h_btn" @click="nextMonth">
              <svg class="cal_h_l_icon">
                <polyline
                    points=",0 8,4 2,8"
                    style="fill: none; stroke: #ffffff; stroke-width:"
                />
              </svg>
            </div>
            <div class="cal_h_btn" @click="nextYear">
              <svg class="cal_h_l_icon">
                <polyline
                    points=",0 8,4 2,8"
                    style="fill: none; stroke: #ffffff; stroke-width:"
                />
                <polyline
                    points=",0 12,4 6,8"
                    style="fill: none; stroke: #ffffff; stroke-width:"
                />
              </svg>
            </div>
          </div>
        </div>
      </div>
      <!-- 顶部右侧 -->
      <div class="cal_header_right">
        <div class="nameText">姓名:张三</div>
        <div class="QingjiaText">请假:{{jobTime["请假"]}}h</div>
        <div class="JiaBanText">加班:{{jobTime["加班"]}}h</div>
        <div class="ChuCaiText">出差:{{jobTime["出差"]}}h</div>
        <div class="YiChangText">异常考勤:{{jobTime["异常卡"]}}次</div>
      </div>
    </div>

    <div class="cal_month">
      <!--日历表头  周一 周二 周三 周四 周五 周六 周日-->
      <div class="cal_m_weeks">
        <div v-for="w in weeks" :key="w" class="cal_m_weeks_cell">
          {{ w }}
        </div>
      </div>
      <!--日历表内容 -->
      <div class="cal_m_days">
        <!-- 第几行 -->
        <div
            v-for="(ds, index) in monthData"
            :key="index"
            class="cal_m_day_line"
        >
          <!-- 每行内容 -->
          <div
              v-for="d in ds"
              :key="d.day"
              class="cal_m_day_cell"
              :style="{ color: getCellColor(d) }"
              @mouseenter="mouseenter(d, $event)"
              @mouseleave="mouseleave(d, $event)"
          >
            <div class="itemDay">{{ d.day }}</div>
            <!-- {{ ds[index].date.Format("yyyy-MM-dd") }} -->
            <!-- {{ d.date.Format("yyyy-MM-dd") }} -->
            <slot :name="d.fullYear + '-' + d.month + '-' + d.day"></slot>
            <!-- 正常卡 -->
            <div
                v-if="
                d.type == &&
                setDataList(d.date).typeName == '正常卡'
              "
                class="ZhengChang"
            >
              <div class="ZhengChangTitle">正常卡:{{setDataList(d.date).jobTime}}次</div>
              <div class="ZhengChangDian">
                <div></div>
                <div></div>
                <div></div>
              </div>
            </div>
            <!-- 请假 -->
            <div
                v-if="
                d.type == &&
                setDataList(d.date).typeName == '请假'
              "
                class="Qingjia"
            >
              <div class="QingjiaTitle">请假:事假{{setDataList(d.date).jobTime}}</div>
              <div class="QingjiaDian">
                <div></div>
                <div></div>
                <div></div>
              </div>
            </div>
            <!-- 加班 -->
            <div
                v-if="
                d.type == &&
                setDataList(d.date).typeName == '加班'
              "
                class="JiaBan"
            >
              <div class="JiaBanTitle">加班:{{setDataList(d.date).jobTime}}h</div>
              <div class="JiaBanDian">
                <div></div>
                <div></div>
                <div></div>
              </div>
            </div>
            <!-- 出差 -->
            <div
                v-if="
                d.type == &&
                setDataList(d.date).typeName == '出差'
              "
                class="ChuChai"
                @click="ss(index)"
            >
              <div class="ChuChaiTitle">出差{{setDataList(d.date).jobTime}}</div>
              <div class="ChuChaiDian">
                <div></div>
                <div></div>
                <div></div>
              </div>
            </div>
            <!-- 异常卡 -->
            <div
                v-if="
                d.type == &&
                setDataList(d.date).typeName == '异常卡'
              "
                class="YiChang"
                @click="ss(index)"
            >
              <div class="YiChangTitle">异常卡{{setDataList(d.date).jobTime}}</div>
              <div class="YiChangDian">
                <div></div>
                <div></div>
                <div></div>
              </div>
            </div>

            <!-- 假期 -->
            <div
                v-if="
                d.type == &&
                setDataList(d.date).typeName == '假期'
              "
                class="JiaQi"
            >
              <div class="JiaQiTitle">假期{{setDataList(d.date).jobTime}}</div>
              <div class="JiaQiDian">
                <div></div>
                <div></div>
                <div></div>
              </div>
            </div>
          </div>
        </div>
      </div>
    </div>
  </div>
</template>

<script setup>
import {ref, reactive, toRefs, onMounted, defineEmits} from "vue";
import {ElMessage, ElMessageBox} from "element-plus";
import {Solar, Lunar} from "lunar-javascript";

const $emit = defineEmits(["enter", "leave", "changeMonth"])
const dataList = reactive({
  datas: [
    {
      time: "-01-29",
      typeName: "正常卡",
      jobTime:
    },
    {
      time: "-01-10",
      typeName: "请假",
      jobTime:
    },
    {
      time: "-01-10",
      typeName: "请假",
      jobTime:
    },
    {
      time: "-01-22",
      typeName: "加班",
      jobTime:
    },
    {
      time: "-01-11",
      typeName: "出差",
      jobTime:
    },
    {
      time: "-01-14",
      typeName: "异常卡",
      jobTime:
    },
    {
      time: "-01-02",
      typeName: "假期",
      jobTime:
    },
  ],
})

let now = ref(new Date()) //当前时间：Fri Jul 2022 09:57:33 GMT+0800 (中国标准时间)
let year = ref()
let month = ref()
let jobTime = ref([])
const weeks = ["周日", "周一", "周二", "周三", "周四", "周五", "周六"]
let monthData = ref([]) //月数据容器
let currentYear = ref(new Date().getFullYear()) //当前年：
let currentMonth = ref(new Date().getMonth() +) //当前月：7
let currentDay = ref(new Date().getDate()) //当前天：
onMounted(() => {
  setYearMonth(now.value);
  generateMonth(now.value);
  getJobTime()
})

function getJobTime(){
  dataList.datas.forEach((item) => {
    console.log("",jobTime)

    // check if animal type has already been added to newObj
    if(!jobTime.value[item.typeName]){
      // If it is the first time seeing this animal type
      // we need to add title and points to prevent errors
      jobTime.value[item.typeName] = {};
      jobTime.value[item.typeName] =;
    }
    // add animal points to newObj for that animal type.
    jobTime.value[item.typeName] += item.jobTime
  })
  console.log("",JSON.stringify(jobTime.value["请假"]))
}

// 通过输入日期，匹配当天的所有数据
// 入参格式 value：'-07-09'
function setDataList(value) {
  let object = {};
  const date = dateFormat("YYYY-mm-dd", value)
  dataList.datas.forEach((element) => {
    if (element.time == date) {
      object = element;
    }
  });
  return object;
}

function setYearMonth(now) {
  year.value = now.getFullYear();
  month.value = now.getMonth() +;
}

function preYear() {
  let n = now.value;
  let date = new Date(
      n.getFullYear() -,
      n.getMonth(),
      n.getDate(),
      n.getHours(),
      n.getMinutes(),
      n.getSeconds(),
      n.getMilliseconds()
  );

  setYearMonthInfos(date);
}

function preMonth() {
  let n = now.value;
  let date = new Date(
      n.getFullYear(),
      n.getMonth() -,
      n.getDate(),
      n.getHours(),
      n.getMinutes(),
      n.getSeconds(),
      n.getMilliseconds()
  );

  setYearMonthInfos(date);
}

function nextYear() {
  let n = now.value;
  let date = new Date(
      n.getFullYear() +,
      n.getMonth(),
      n.getDate(),
      n.getHours(),
      n.getMinutes(),
      n.getSeconds(),
      n.getMilliseconds()
  );

  setYearMonthInfos(date);
}

function nextMonth() {
  let n = now.value;
  let date = new Date(
      n.getFullYear(),
      n.getMonth() +,
      n.getDate(),
      n.getHours(),
      n.getMinutes(),
      n.getSeconds(),
      n.getMilliseconds()
  );

  setYearMonthInfos(date);
}

function setYearMonthInfos(date) {

  setYearMonth(date);
  generateMonth(date);
  now.value = date;
  dateChange();
}

function generateMonth(date) {
  date.setDate();
  // 星期 - 6， 星期天 - 星期6
  let weekStart = date.getDay();

  let endDate = new Date(date.getFullYear(), date.getMonth() +, 0);
  let dayEnd = endDate.getDate();
  // 星期 - 6， 星期天 - 星期6
  let weeEnd = endDate.getDay();

  let milsStart = date.getTime();
  let dayMils = * 60 * 60 * 1000;
  let milsEnd = endDate.getTime() + dayMils;

  let monthDatas = [];
  let current;
  // 上个月的几天
  for (let i =; i < weekStart; i++) {
    current = new Date(milsStart - (weekStart - i) * dayMils);
    monthDatas.push({
      type: -,
      date: current,
      fullYear: current.getFullYear(),
      month: current.getMonth() +,
      day: current.getDate(),
    });
  }
  // 当前月
  for (let i =; i < dayEnd; i++) {
    current = new Date(milsStart + i * dayMils);
    monthDatas.push({
      type:,
      date: current,
      fullYear: current.getFullYear(),
      month: current.getMonth() +,
      day: current.getDate(),
    });
  }
  // 下个月的几天
  for (let i =; i < 6 - weeEnd + 1; i++) {
    current = new Date(milsEnd + i * dayMils);
    monthDatas.push({
      type:,
      date: current,
      fullYear: current.getFullYear(),
      month: current.getMonth() +,
      day: current.getDate(),
    });
  }

  monthData.value = [];
  for (let i =; i < monthDatas.length; i++) {
    let mi = i %;
    if (mi ==) {
      monthData.value.push([]);
    }
    monthData.value[Math.floor(i /)].push(monthDatas[i]);
  }

  // 少于行，补足6行
  if (monthData.value.length <=) {
    milsStart = current.getTime();
    let lastLine = [];
    for (let i =; i <= 7; i++) {
      current = new Date(milsStart + i * dayMils);
      lastLine.push({
        type:,
        date: current,
        fullYear: current.getFullYear(),
        month: current.getMonth() +,
        day: current.getDate(),
      });
    }
    monthData.value.push(lastLine);
  }
  console.log("//", JSON.parse(JSON.stringify(monthData.value)))
}

function getCellColor(d) {
  if (
      d.fullYear == currentYear.value &&
      d.month == currentMonth.value &&
      d.day == currentDay.value
  ) {
    return "#eff";
  }
  let color = d.type == - ? "#c0c4cc" : d.type == 1 ? "#c0c4cc  " : "";

  return color;
}

function mouseenter(d, event) {
  $emit("enter", event, d);
  // document.getElementsByClassName('cal_m_day_cell').style('background-color','#')
}

function mouseleave(d, event) {
  $emit("leave", event, d);
}

function dateChange() {
  let fullYear = now.value.getFullYear();

  let month = now.value.getMonth();
  let startDay = new Date(fullYear, month,);
  let endDay = new Date(fullYear, month +, 0, 23, 59, 59);
  $emit("changeMonth", startDay, endDay);
}

function dateFormat(fmt, date) {
  let ret;
  const opt = {
    "Y+": date.getFullYear().toString(),        // 年
    "m+": (date.getMonth() +).toString(),     // 月
    "d+": date.getDate().toString(),            // 日
    "H+": date.getHours().toString(),           // 时
    "M+": date.getMinutes().toString(),         // 分
    "S+": date.getSeconds().toString()          // 秒
    // 有其他格式化字符需求可以继续添加，必须转化成字符串
  };
  for (let k in opt) {
    ret = new RegExp("(" + k + ")").exec(fmt);
    if (ret) {
      fmt = fmt.replace(ret[], (ret[1].length == 1) ? (opt[k]) : (opt[k].padStart(ret[1].length, "0")))
    }
    ;
  }
  ;
  return fmt;
}


</script>

<style scoped lang="scss">
.cal_con {
  box-sizing: border-box;
  width:px; //下方单元格*7+左右内边距 140*7+20+20
  padding:px 20px 20px 20px;
  -webkit-user-select: none; //取消鼠标点快了文字会被选中。
  -moz-user-select: none; //取消鼠标点快了文字会被选中。
  -ms-user-select: none; //取消鼠标点快了文字会被选中。
  user-select: none; //取消鼠标点快了文字会被选中。
  color: #;
  box-shadow: 2px 12px 0 #0000006e;
  background: #ffffff;
  border-radius:px;

  .cal_header {
    width:px; //下方单元格*7 140*7
    height:px;
    display: flex;
    align-items: center;
    justify-content: space-between;

    .cal_header_left {
      display: flex;
      flex-direction: column;
      align-items: center;

      .cal_header_left_top {
        width:px;
        height:px;
        background: #af9;
        display: flex;
        align-items: center;
        justify-content: center;

        .cal_h_time {
          font-family: "Microsoft YaHei";
          font-style: normal;
          font-weight:;
          font-size:px;
          color: #ffffff;
        }
      }

      .cal_header_left_bottom {
        width:px;
        height:px;
        background: rgba(, 154, 249, 0.6);
        display: flex;
        align-items: center;
        justify-content: space-between;

        .cal_h_left {
          height:%;
          display: flex;

          .cal_h_btn {
            height:%;
            width:px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
          }

          .cal_h_btn:hover {
            background-color: #af9;
          }

          .cal_h_l_icon {
            height:px;
            width:px;
            margin: auto;
          }
        }

        .cal_h_center {
          .cal_h_time {
            font-family: "Microsoft YaHei";
            font-style: normal;
            font-weight:;
            font-size:px;
            color: #ffffff;
          }
        }

        .cal_h_right {
          height:%;
          display: flex;

          .cal_h_btn {
            height:%;
            width:px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
          }

          .cal_h_btn:hover {
            background-color: #af9;
          }

          .cal_h_l_icon {
            height:px;
            width:px;
            margin: auto;
          }
        }
      }
    }

    .cal_header_right {
      //   width:px;
      height:px;
      font-family: "Microsoft YaHei";
      font-style: normal;
      font-weight:;
      font-size:px;
      line-height:px;
      display: flex;
      align-items: center;
      justify-content: center;

      .QingjiaText {
        color: rgba(, 199, 0, 1);
        margin-left:px;
      }

      .JiaBanText {
        color: rgba(, 0, 255, 1);
        margin-left:px;
      }

      .ChuCaiText {
        color: rgba(, 167, 40, 1);
        margin-left:px;
      }

      .YiChangText {
        color: rgba(, 92, 39, 1);
        margin-left:px;
      }
    }
  }

  .cal_month {
    // 日历表头 周日 周一 周二 周三 周四 周五 周六
    .cal_m_weeks {
      display: flex;

      .cal_m_weeks_cell {
        box-sizing: border-box;
        width:px;
        height:px;
        font-weight:;
        font-size:px;
        border:px solid #e4e7ed;
        display: flex;
        align-items: center;
        justify-content: center;
        color: rgba(, 0, 0, 0.45);
      }
    }

    // 日历表内容
    .cal_m_days {
      // 第几行
      .cal_m_day_line {
        display: flex;
        // 每行内容
        .cal_m_day_cell {
          box-sizing: border-box;
          width:px;
          height:px;
          border:px solid #e4e7ed;

          .itemDay {
            width:%;
            height:px;
            font-style: normal;
            font-weight:;
            font-size:px;
            text-align: right;
            box-sizing: border-box;
            padding-right:px;
          }
        }

        // 每行内容-浮动效果
        .cal_m_day_cell:hover {
          color: #eff;
        }
      }
    }
  }
}

// 正常卡
.ZhengChang {
  margin:px 0px 0px 8px;
  width:px;
  height:px;
  border-radius:px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding:px 10px;
  background: rgba(, 154, 249, 0.2);
  color: rgba(, 154, 249, 1);

  .ZhengChangTitle {
  }

  .ZhengChangDian {
    div {
      width:px;
      height:px;
      margin-bottom:px;
      border-radius:px;
      background: rgba(, 154, 249, 1);
    }
  }
}

.ZhengChang:hover {
  transform: scale(.1);
}

// 请假
.Qingjia {
  margin:px 0px 0px 8px;
  width:px;
  height:px;
  border-radius:px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding:px 10px;
  background: rgba(, 199, 0, 0.2);
  color: rgba(, 199, 0, 1);

  .QingjiaTitle {
  }

  .QingjiaDian {
    div {
      width:px;
      height:px;
      margin-bottom:px;
      border-radius:px;
      background: rgba(, 199, 0, 1);
    }
  }
}

.Qingjia:hover {
  transform: scale(.1);
}

// 加班
.JiaBan {
  margin:px 0px 0px 8px;
  width:px;
  height:px;
  border-radius:px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding:px 10px;
  background: rgba(, 0, 255, 0.2);
  color: rgba(, 0, 255, 1);

  .JiaBanTitle {
  }

  .JiaBanDian {
    div {
      width:px;
      height:px;
      margin-bottom:px;
      border-radius:px;
      background: rgba(, 0, 255, 1);
    }
  }
}

.JiaBan:hover {
  transform: scale(.1);
}

// 出差
.ChuChai {
  margin:px 0px 0px 8px;
  width:px;
  height:px;
  border-radius:px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding:px 10px;
  background: rgba(, 167, 40, 0.2);
  color: #ffa;

  .ChuChaiTitle {
  }

  .ChuChaiDian {
    div {
      width:px;
      height:px;
      margin-bottom:px;
      border-radius:px;
      background: #ffa;
    }
  }
}

.ChuChai:hover {
  transform: scale(.1);
}

// 异常卡
.YiChang {
  margin:px 0px 0px 8px;
  width:px;
  height:px;
  border-radius:px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding:px 10px;
  background: rgba(, 92, 39, 0.2);
  color: rgba(, 92, 39, 1);

  .YiChangTitle {
  }

  .YiChangDian {
    div {
      width:px;
      height:px;
      margin-bottom:px;
      border-radius:px;
      background: rgba(, 92, 39, 1);
    }
  }
}

.YiChang:hover {
  transform: scale(.1);
}

// 假期
.JiaQi {
  margin:px 0px 0px 8px;
  width:px;
  height:px;
  border-radius:px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding:px 10px;
  background: rgba(, 209, 155, 0.2);
  color: rgba(, 209, 155, 1);

  .JiaQiTitle {
  }

  .JiaQiDian {
    div {
      width:px;
      height:px;
      margin-bottom:px;
      border-radius:px;
      background: rgba(, 209, 155, 1);
    }
  }
}

.JiaQi:hover {
  transform: scale(.1);
}
</style>