小程序跳转tabBar

需求：点击图一购物车按钮，跳转到购物车页面

1.按钮绑定事件

<van-goods-action-icon icon="cart-o" text="购物车" bind:click="goShoppingCart" />

 2.事件（要用wx.switchTab）

// 进入购物车
    goShoppingCart () {
        wx.switchTab({
            url: `/pages/index/shoppingCart/index`
        })
    },

⚠️注意这个url路径要与app.json中的pagePath一样

3.在app.json中添加

"tabBar": {
        "list": [{
            "pagePath": "pages/index/home/index",
            "text": "首页"
        },{
            "pagePath": "pages/index/category/index",
            "text": "分类"
        },{
            "pagePath": "pages/index/shoppingCart/index",
            "text": "购物车"
        },{
            "pagePath": "pages/index/me/index",
            "text": "我的"
        }]
    },
"pages": [
        "pages/index/index",
        "pages/index/home/index",
        "pages/index/shoppingCart/index",
        "pages/index/category/index",
        "pages/index/me/index"
    ]

⚠️这个路径是从app.json开始数的相对路径，如图