关于叮咚志汇同城无法显示地理位置，报错getLocation需要在app.
找到app.json文件，将最后一段代码修改为：{
"root": "zh_tcwq/pages/extra",
"pages": [
"canvas",
"ptgly/bbaa",
"ptgly/tzlb",
"ptgly/bjtz"
]
}
],
"permission": {
"scope.userLocation": {
"desc": "你的位置将用于小程序使用"
}
}
}
