Vue el-date-picker 日期组件的使用，需要初始化时间，初始化时间时候，注意 日期月份 补0

Vue el-date-picker 日期组件的使用 需要初始化时间，初始化时间时候，注意 日期月份 补0
https://www.cnblogs.com/zhoushuang0426/p/10606863.html

一:显示年月

<el-date-picker v-model="selectMonth" type="month" placeholder="选择月"   @change="jobSearch" value-format="yyyy-MM"></el-date-picker>

js代码:

二:选择年月日

<el-date-picker v-model="selectDay" type="date" placeholder="选择日" @change="dataSearch" value-format="yyyy-MM-dd"></el-date-picker>

js代码:

<script>
export default {
    data() {
         return {
            selectDay:''
        }
    },
    created() {
        this.initData({});
    },
    methods: {
        dataSearch() {
      this.getListByDay();
    },
    async initData(data) {
      //获取当前时间
      var now   = new Date();
      var monthn = now.getMonth()+1;
      var yearn  = now.getFullYear();
      var dayn = now.getDate();
      this.selectDay = yearn+"-"+monthn+"-"+dayn;
      this.selectUser = parseInt(sessionStorage.getItem("userid"));
      this.getListByDay();
    },
    async getListByDay(data) {
    }
   }
}
</script>

三:显示年月日时分(秒)

<el-date-picker v-model="selectDatetime" type="datetime" placeholder="选择时间" @change="dataSearch" value-format="yyyy-MM-dd HH:mm" format="yyyy-MM-dd HH:mm"></el-date-picker>

js代码:

<script>
export default {
    data() {
         return {
            selectDatetime:''
        }
    },
    created() {
        this.initData({});
    },
    methods: {
        dataSearch() {
      this.getListByDataTime();
    },
    async initData(data) {
      //获取当前时间
      var now   = new Date();
      var monthn = now.getMonth()+1;
      var yearn  = now.getFullYear();
      var dayn = now.getDate();
      var h = now.getHours();
      var m =now.getMinutes();
      var s = now.getSeconds();
      this.selectDatetime = yearn+"-"+monthn+"-"+dayn+" "+h+":"+m+":"+s;
      this.selectUser = parseInt(sessionStorage.getItem("userid"));
      this.getListByDataTime();
    },
    async getListByDataTime(data) {
    }
   }
}
</script>