- 当前 Bug 的表现（可附上截图） - 预期表现 - 复现路径 - 提供一个最简复现 Demo 微信小程序tabBar底部导航 不显示问题解析{ "pages": [ "pages/login/login", "pages/index/index", "pages/join_per/join_per", "pages/register/register" ], "permission": { "scope.userLocation": { "desc": "你的位置信息将用于获取当地天气信息" } }, "window": { "backgroundTextStyle": "light", "navigationBarBackgroundColor": "#fff", "navigationBarTitleText": "xxx", "navigationBarTextStyle": "black" }, "tabBar": { "color": "#ccc", "selectedColor": "#ed7044", "borderStyle": "black", "backgroundColor": "#fff", "list": [ { "selectedIconPath": "images/indexicon1-on.png", "iconPath": "images/indexicon1.png", "pagePath": "pages/index/index", "text": "首页" }, { "selectedIconPath": "images/indexicon2-on.png", "iconPath": "images/indexicon2.png", "pagePath": "pages/discountlist/discountlist", "text": "优惠" }, { "selectedIconPath": "images/indexicon3-on.png", "iconPath": "images/indexicon3.png", "pagePath": "pages/community/community", "text": "社区" }, { "selectedIconPath": "images/indexicon4-on.png", "iconPath": "images/indexicon4.png", "pagePath": "pages/personal/personal", "text": "我的" } ] }, "sitemapLocation": "sitemap.json" } 刚进来是一个登录页面  然后登录之后是首页 逻辑判断是是否登录 如果登录则直接进入首页  现在有个问题是 切换到其他页面之后 返回到首页 再次切换到其他页面 大概2次之后 底部的导航则会消失