elementui省市二级联动

以下是两种ElementUI省市二级联动的例子：

1. 省市二级联动（不带“全部”选项）

<template>
  <div id="app">
    <el-cascader size="large" :options="options" v-model="selectedOptions" @change="handleChange"></el-cascader>
  </div>
</template>

<script>
import { provinceAndCityData } from 'element-china-area-data'

export default {
  data () {
    return {
      options: provinceAndCityData,
      selectedOptions: []
    }
  },
  methods: {
    handleChange (value) {
      console.log(value)
    }
  }
}
</script>

2. 省市二级联动（带“全部”选项）

<template>
  <div id="app">
    <el-cascader size="large" :options="options" v-model="selectedOptions" @change="handleChange"></el-cascader>
  </div>
</template>

<script>
import { provinceAndCityDataPlus } from 'element-china-area-data'

export default {
  data () {
    return {
      options: provinceAndCityDataPlus,
      selectedOptions: []
    }
  },
  methods: {
    handleChange (value) {
      console.log(value)
    }
  }
}
</script>