问大佬们问下为什么我的tabBar设置了没显示，也没报错？

{

"pages": [

"pages/index/index",

"pages/shopping/shopping",

"pages/user/user",

"pages/logs/logs"

],

"window": {

"backgroundTextStyle": "light",

"navigationBarBackgroundColor": "#fff",

"navigationBarTitleText": "limo_icon",

"navigationBarTextStyle": "black"

},

"tabBar": {

"list": [

{

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

"text": "首页",

"iconPath": "icon/-home.png",

"selectedIconPath": "icon/home.png"

},

{

"pagePath": "pages/shopping/shopping",

"text": "购物车",

"iconPath": "icon/-shopping.png",

"selectedIconPath": "icon/shopping.png"

},

{

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

"text": "个人中心",

"iconPath": "icon/-user.png",

"selectedIconPath": "icon/user.png"

}

]

},

"sitemapLocation": "sitemap.json"

}