这个这个name哪里出错了,第21行

#include<iostream>
using namespace std;
#include<string.h>

class Book
{
private:
    char name[20];
    int number;
public:
    Book()
    {
        strcpy(name, "no name");
        number = 0;
        cout << "调用无参构造函数" << endl;
    }
    Book(char* newname, int number)
    {
        strcpy(name, newname);
        this->number = number;
        cout << "调用有参构造函数" << endl;
    }
    void Show();

    Book(Book& b)
    {
        name = b.name;
        number = b.number;
        cout << "执行拷贝构造函数" << endl;
    }

};
void Book::Show()
{
    cout << "书名和number分别为:" << endl;
    cout << name << endl;
    cout << number << endl;
}

int main()
{
    Book b1;
    b1.Show();
}

字符串不能直接赋值哦，我改了一下

#include<iostream>
using namespace std;
#include<string.h>

class Book
{
private:
    char name[20];
    int number;
public:
    Book()
    {
        strcpy(name, "no name");
        number = 0;
        cout << "调用无参构造函数" << endl;
    }
    Book(char* newname, int number)
    {
        strcpy(name, newname);
        this->number = number;
        cout << "调用有参构造函数" << endl;
    }
    void Show();

    Book(Book& b)
    {
        strcpy(name, b.name);
        number = b.number;
        cout << "执行拷贝构造函数" << endl;
    }

};
void Book::Show()
{
    cout << "书名和number分别为:" << endl;
    cout << name << endl;
    cout << number << endl;
}

int main()
{
    Book b1;
    b1.Show();
}

数组名是个地址，是常量