小编Ani*_*udh的帖子

我给时出错

export class UserComponent implements OnInit {
user:User;
constructor(){
    
    
}

ngOnInit(){  

    this.user = {
        firstName : "test",
        lastName : "test",
        age : 40,
        address: {
            street : "Test",
            city : "test",
            state: "test"
        }
    }
    
  }

}

我收到此错误：

Property 'user' has no initializer and is not definitely assigned in the constructor.

user 继承自 User.ts，User.ts 包含以下代码：

export interface User {
firstName:string,
lastName:string,
age?:number,
address?:{
    street?: string,
    city?:string,
    state?:string
}


}

添加?到用户在其他文件中显示错误：

还有另一个名为 users 的文件夹......这是主要的......现在当我添加？在这里，它向我展示了这个错误。