父向子传值:

//父组件

<selectionGroup v-for="item in tab" :item="item"></selectionGroup>

//子组件

<GroupItem v-for="section in item"></GroupItem>

//子组件接收值
props: {

item: {
    type: Object
},

子向父传值:

//子组件

<input type="radio" @click="check(feature.description)"/>

check(description){
this.$emit('description',);//第一个值是event,第二个值是 data
},
//父组件 
<GroupChild @description="description"></GroupChild>
methods: {

description(description){

},
 

路由传参:

<template>

<list v-for="item in productList" :item="item" @details = "details(item)"></list>
</template>
<script>

details (item) {

router.push({

params:{item:item}
  })
}
</script>

//接收
Value: this.$route.params.item,
 
 

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