SOURCE

var app = new Vue({
  el:'#app',
  data() {
      return {
        value6:''
    }
  }
})

<div id="app">
  <el-date-picker
      v-model="value6"
      type="daterange"
      range-separator="至"
      start-placeholder="开始日期"
      end-placeholder="结束日期">
    </el-date-picker>
</div>