方法一:
参数传递
<el-cascader v-model="value" :options="List" @expand-change="handleChange($event,'222')" />
<el-cascader v-model="value" :options="List" @change="handleChange($event,'222')" />
参数接收
handleChange(value, path) => {
console.log('value', value)
console.log('path', path)
)
select一样用法
方法二
<el-cascader v-model="value" :options="List" @expand-change="(val)=>handleChange(val,'222')" />
<el-cascader v-model="value" :options="List" @change="(val)=>handleChange(val,'222')" />
接收同上
小记基础