uni.app运行到微信开发者工具，底部导航栏tabBar不显示

{
"pages": [{
"path": "pages/home/home",
"style": {
"navigationBarTitleText": "",
"navigationStyle": "custom"
// "navigationBarTextStyle": "white"
}
},
{
"path": "pages/home/me",
"style": {
"navigationBarTitleText": "",
"navigationStyle": "custom",
"navigationBarTextStyle": "white"
}
},

"tabBar": {
"custom": true,
"color": "#909399",
"selectedColor": "#303133",
"backgroundColor": "#FFFFFF",
"borderStyle": "black",
"list": [{
"pagePath": "pages/home/home",
"iconPath": "static/fw21.png",
"selectedIconPath": "static/fw22.png",
"text": "服务"
},
{
"pagePath": "pages/home/me",
"iconPath": "static/me21.png",
"selectedIconPath": "static/me22.png",
"text": "我的"
}
]
},