多层数据结构,`我们可以考虑使用v-for进行嵌套循环

	<ul> 
			<li v-for="(item,index) in tableData" :key="index" >
				0{{item.name}}
				<ul>
					<li v-for="(item1,index1) in tableData[index].items"  :key="index1">
						1{{item1.name}}
						<ul>
							<li v-for="(item2,Index2) in tableData[index].items[index1].act" :key="Index2">
								2{{item2.name}}
							</li>
						</ul>
					</li>
				</ul>
			</li>
		</ul>

{
	"code": 0,
	"data": [{
		"name": "美食",
		"items": [{
				"name": "火锅",
				"act": [{
					"name": "白菜"
				}, {
					"name": "豆腐"
				}, {
					"name": "煎饼"
				}]
			},
			{
				"name": "小吃",
				"act": [{
					"name": "菜煎饼"
				}, {
					"name": "豆芽饼"
				}, {
					"name": "糖葫芦"
				}]
			}
		]
	}],
	"message": "成功"
}