使用ngIf或者ngSwitch出错 在html文件中使用ngIf或者ngSwitch时，会解析出错，错误提示如下： Error: Template parse errors: Can't bind to 'ngSwitch' since it isn't a
使用ngIf或者ngSwitch出错 在html文件中使用ngIf或者ngSwitch时，会解析出错，错误提示如下： Error: Template parse errors: Can't bind to 'ngSwitch' since it isn't a
