CommunityApp/pages/demo/demo6.vue

<template>
	<view class="">
		<button @click="change">修改</button>
		<view class="margin-left-50" v-for="(item,index) in list" :key="index">
			<text>{{item.name}}</text>
		</view>
	</view>
</template>

<script>
export default {
	name: '',
	data() {
		return {
			list:[{
				id:1,
				name:'a'
			}]
		};
	},
	methods:{
		change(){
			this.list[0].name='b'
		}
	}
};
</script>

<style lang="scss" scoped>
	
</style>