swift中的坑

1.NSClassFromString

  //获取工程名称

  let group = Bundle.main.infoDictionary

  let fileName = group?[kCFBundleExecutableKey as String] as! String

//LyRacDemo是工程名称，PersonClass是类的名称 -> NSClassFromString("工程名.类名") as? NSObject.Type

let modelClass = NSClassFromString("LyRacDemo.PersonClass") as? NSObject.Type

if modelClass != nil {
    let cl = modelClass?.init()
}