无效的表达式术语'string'



错误:

表达式术语"string"无效

施工单位:

public Car(string make, string model, int condition, double price, int passenger)
  :base(string make, model, condition, price)

问题:base class构造函数发送参数时,不需要使用datatype
解决方案:base()参数make 中删除string

试试这个:

public Car(string make, string model, int condition, double price, int passenger )
           :base(make, model, condition, price)
public Car(string make, string model, int condition, double price, int passenger )
       :base(make, model, condition, price)

只需删除"字符串"-您像调用普通函数一样调用构造函数,因此不需要关键字字符串

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