C++试题精选----I/O----NO.1

Posted 2021-07-25 敲代码的xiaolang

希望c++的入门者们闲暇之余，可以浏览思考，有什么问题欢迎留言或者私信。
I/O----NO.1

#include<iostream>
#include<string.h>
using namespace std;
class EMPLOYEE{
private:
	long id;
	char name[20];
	char department[50];
	int  age;
	double salary;
public:
	EMPLOYEE();
	EMPLOYEE(const EMPLOYEE& obj);
	EMPLOYEE(long idd, char namee[], char depar[], int agee, double sala);
	~EMPLOYEE();
	void changeDepartment(char newDepar[]);
	void changeAge(int agee);
	void raiseSalary(double delta);
	// 定义友元函数,提供输入/输出运算"<<"和">>"。
	friend ostream& operator<<(ostream& stream, EMPLOYEE& obj);
	friend istream& operator>>(istream& stream, EMPLOYEE& obj);
}; 

EMPLOYEE::EMPLOYEE()
{
	id=0;
	name[0]=0;//字符数组进行初始化 
	department[0]=0;//字符数组进行初始化 
	age=0;
	salary=0;
}
EMPLOYEE::EMPLOYEE(long idd,char namee[],char depar[],int agee,double sala)
{
	id=idd;
	age=agee;
	salary=sala;
	strcpy(name,namee);
	strcpy(department,depar);
}

EMPLOYEE::~EMPLOYEE()
{
	
}
void EMPLOYEE::changeDepartment(char NewDepar[])
{
	department[80]=NewDepar[80];
}
void EMPLOYEE::changeAge(int Agee)
{
	age=Agee;
} 
void EMPLOYEE::raiseSalary(double delta)
{
	salary=delta;
}
ostream&operator<<(ostream&stream,EMPLOYEE&obj)
{
	stream<<"工号："<<obj.id<<endl;
	stream<<"姓名："<<obj.name<<endl;//输出一个数组的操作 
	stream<<"年龄："<<obj.age<<endl;
	stream<<"部门："<<obj.department<<endl;//同上，输出数组 
	stream<<"工资："<<obj.salary<<endl;
	return stream; 
}
istream&operator>>(istream&stream,EMPLOYEE&obj)
{
	cout<<"请输入工号：";
	stream>>obj.id;
	cout<<"请输入名字：";
	stream>>obj.name;
	cout<<"输入部门：";
	stream>>obj.department;
	cout<<"输入年龄：";
	stream>>obj.age;
	cout<<"输入工资：";
	stream>>obj.salary;
	return stream; 
}
int main( )
{
	EMPLOYEE A(200701, "Tom","DEPARTMENT A",34,2345.6);
	cout<<A;
	cout<<"----------------------------"<<endl;
	EMPLOYEE B;
	cin>>B;
	cout<<"输入的信息："<<B<<endl;
	system("pause");
    return 0;
}
//本代码并非完美，有些不足之处，希望大家能自己去尝试改正 

运行结果

本代码存在两个warning,希望大家自行改正

有问题私聊博主或者在下面留言，如果有更好的解法也请留言，欢迎大家讨论，共同进步，一起学习。

“C++是面向对象编程，我也想面向对象编程。”