类构造函数错误，类"classname"没有成员"classname"

Class Constructor error, class "classname" has no member "classname"

本文关键字：classname 成员 错误 构造函数      更新时间：2023-10-16
#ifndef RESERVATIONS_H_INCLUDED
#define RESERVATIONS_H_INCLUDED
#include <vector>
#include <string.c>
class Reservations
{
public:
    Reservations::Reservations { }
    Reservations(string FullName, int PhoneNum);
    string getname() { return FullName; }
    int getnumber() { return PhoneNum; }
private:
    string FullName;
    int PhoneNum;
}
#endif // RESERVATIONS_H_INCLUDED
Reservations::Reservations(string FullName, int PhoneNum) //error on this line
{
    FullName = FullName;
    PhoneNum = PhoneNum;
}

我在标题中得到错误，我不知道为什么它假设我希望它有一个自己类的成员......

你包含了错误的头文件

改变 

#include <string.c>

自

#include <string>

还要将字符串与完整命名空间 std 一起使用。

下面的代码应该通过小修复进行编译：

class Reservations
{
public:
    Reservations() : PhoneNum(0) {}
    Reservations(std::string FullName, int PhoneNum);
    std::string getname() { return FullName; }
    int getnumber() { return PhoneNum; }
private:
    std::string FullName;
    int PhoneNum;
};
Reservations::Reservations(std::string FullName, int PhoneNum) 
{
   this->FullName = FullName;
   this->PhoneNum = PhoneNum;
}
// Better use member initializers list
Reservations::Reservations(std::string FullName, int PhoneNum) 
: FullName(FullName),
  PhoneNum(PhoneNum)
{
}

你的意思是

Reservations::Reservations() { }

而不是

Reservations::Reservations { }

？

这样做：

class Reservations
{
    public:
    //Reservations::Reservations { }
    Reservations() { }
    ....
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