在c++里用strcpy（）出错，怎么解决

[C1401958625]

#include <iostream>
using namespace std;
class Student
{public:
Student(int,char[],char,float);
int get_num(){return num;}
char * get_name(){return name;}
char get_sex(){return sex;}
void display()

{cout<<"num:"<<num<<"\nname:"<<name<<"\nsex:"<<sex<<"\nscore:"<<score<<"\n\n";}
private:
int num;
char name[20];
char sex;
float score;
};
Student::Student(int n,char nam[],char s,float so)
{num=n;
strcpy(name,nam);
sex=s;
score=so;
}
class Teacher
{public:
Teacher(){}
Teacher(Student&);
Teacher(int n,char nam[],char sex,float pay);
void display();
private:
int num;
char name[20];
char sex;
float pay;
};

Teacher::Teacher(int n,char nam[],char s,float p)
{num=n;
strcpy(name,nam);
sex=s;
pay=p;
}
Teacher::Teacher(Student& stud)
{num=stud.get_num();
strcpy(name,stud.get_name());
sex=stud.get_sex();
pay=1500;}
void Teacher::display()
{cout<<"num:"<<num<<"\nname:"<<name<<"\nsex:"<<se x<<"\npay:"<<pay<<"\n\n";}
int main()
{Teacher teacher1(10001,"Li",'f',1234.5),teacher2;
Student student1(20010,"Wang",'m',89.5);
cout<<"student1:"<<endl;
student1.display();
teacher2=Teacher(student1);
cout<<"teacher2:"<<endl;
teacher2.display();
return 0;
}

[minchieh_fay_]

兄弟， 以后提问题，建议描述下 是编译时错误，连接时错误，还是运行时错误 编译时： 添加头文件<string.h> 运行时： 打印下入参看下

[ipqtjmqj]

出错内容是什么，好得描述下

[raining]

前面加上 #include <cstring>

[LB__x]

试试用strcpy_s

[paschen]

包含头文件 <string.h> http://en.cppreference.com/w/c/string/byte/strcpy 如果是在VS中，这个函数是不安全，可能造成缓冲区溢出，所以现在建议用strcpy_s来代替 如果仍想用可以选择以下任何一种方法： 1、新建项目时不要勾选安全开发生命周期检查 2、在项目属性C/C++命令行中加上 /D _CRT_SECURE_NO_WARNINGS

[C1401958625]

编译时出错

[C1401958625]

加了头文件之后还是出错了,我是在Dev上运行的

[C1401958625]

题目是： 定义一个Teacher(教师)类和一个Student(学生)类，二者有一部分数据成员是相同的，l例如：num(号码)，name(姓名),sex(性别)。编写程序，将一个Student对象(学生)转换为Teacher(教师)类，只将以上3个相同的数据成员移植过去。可以设想为： 一位学生大学毕业了，留校担任教师，他原有的部分数据对现在的教师身份来说仍然是有用的，应当保留并成为其教师数据的一部分

[hongwenjun]

添加 #include <string.h>

{cout << "num:" << num << "\nname:" << name << "\nsex:" << sex << "\npay:" << pay << "\n\n";}
这行的 sex 你 输入成 se x了

我是用 CODEBLOCKS的，一个好的IDE 对学习还是很有帮助的

#include <iostream>
#include <string.h>
using namespace std;
class Student
{
public:
    Student(int, char[], char, float);
    int get_num() {return num;}
    char* get_name() {return name;}
    char get_sex() {return sex;}
    void display()

    {cout << "num:" << num << "\nname:" << name << "\nsex:" << sex << "\nscore:" << score << "\n\n";}
private:
    int num;
    char name[20];
    char sex;
    float score;
};
Student::Student(int n, char nam[], char s, float so)
{
    num = n;
    strcpy(name, nam);
    sex = s;
    score = so;
}
class Teacher
{
public:
    Teacher() {}
    Teacher(Student&);
    Teacher(int n, char nam[], char sex, float pay);
    void display();
private:
    int num;
    char name[20];
    char sex;
    float pay;
};

Teacher::Teacher(int n, char nam[], char s, float p)
{
    num = n;
    strcpy(name, nam);
    sex = s;
    pay = p;
}
Teacher::Teacher(Student& stud)
{
    num = stud.get_num();
    strcpy(name, stud.get_name());
    sex = stud.get_sex();
    pay = 1500;
}
void Teacher::display()
{cout << "num:" << num << "\nname:" << name << "\nsex:" << sex << "\npay:" << pay << "\n\n";}
int main()
{
    Teacher teacher1(10001, "Li", 'f', 1234.5), teacher2;
    Student student1(20010, "Wang", 'm', 89.5);
    cout << "student1:" << endl;
    student1.display();
    teacher2 = Teacher(student1);
    cout << "teacher2:" << endl;
    teacher2.display();
    return 0;
}

[zzzzzbin]

引用 楼主 <span style="color:#4788C7">c1401958625</span>的回复:

编译时出错

<br />加上头文件string.h