建议tabbar组件中添加跳转方式字段，默认是switchTab跳转一级页面,允许使用navigateTo跳转非Tabbar页面

"openType": "navigateTo"

举例：

"tabBar": {

"list": [

{

"pagePath": "pages/home/home/home",

"text": "首页",

"iconPath": "./images/home.png",

"selectedIconPath": "./images/home1.png"

},

{

"openType": "navigateTo",

"pagePath": "pages/index/index",

"text": "二级页面",

"iconPath": "./images/index.png",

"selectedIconPath": "./images/index1.png"

},

{

"pagePath": "pages/user/user/user",

"text": "我的",

"iconPath": "./images/user.png",

"selectedIconPath": "./images/user1.png"

}

]

},