swift如何根据字符串，即类名创建类

申明类：required override init() 必须实现

    class Model11: NSObject {
      var name = "zhangsan"
      required override init() {}
    }

       guard let nameSpace = Bundle.main.infoDictionary!["CFBundleExecutable"] as? String else {
            print("没有获取到命名空间")
            return

        }
        
        guard let model:AnyObject.Type = NSClassFromString("\(nameSpace).Model11") else {
            print("没有获取到对应的类")
            return
        }
        
        guard let model11 = model as? Model11.Type else{
            print("没有转换成model")
            return
        }
        
        let temp = model11.init()
        print(temp.name)