代码片段不能正常运行

https://developers.weixin.qq.com/miniprogram/dev/reference/configuration/app.html

{

"pages": ["pages/index/index", "pages/logs/index"],

"window": {

"navigationBarTitleText": "Demo"

},

"tabBar": {

"list": [

{

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

"text": "首页"

},

{

"pagePath": "pages/logs/logs",

"text": "日志"

}

]

},

"networkTimeout": {

"request": 10000,

"downloadFile": 10000

},

"debug": true,

}

style

这段的代码实例不能正常运行