1.el-select
(1) Single choice: v-model is bound to a string or a Number
data(){
return {
value: '1'
}
}
<el-select v-model="value"></el-select>
(2) Multiple choice: v-model is bound to a one-dimensional array ['1', '2'], and the value of id is stored in the array
data(){
return {
value: ['1','2']
}
}
<el-select v-model="value" multiple></el-select>
2.el-cascader
(1) Single choice: v-mode is bound to a one-dimensional array ['1', '2'], and the value of id is stored in the array
data(){
return {
value: ['1','2']
}
}
<el-cascader v-model="value"></el-cascader>
(2) Multiple choice: v-model is bound to a two-dimensional array [[1,2,3], [1,2,4], [1,2,5]], and the array stores the ids from the parent to the last child
data(){
return {
value: [[1,2,3],[1,2,4],[1,2,5]]
}
}
<el-cascader v-model="value" multiple></el-cascader>