c++学生信息管理系统

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前言

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一、部分代码

本文是通过结构体的定义完成的一个学生管理系统,在此我们定义了两个结构体,bj是类似于班级,里面包含了学生和班级容量的元素。而学生则包含了姓名、性别、年龄、电话、住址等元素。

#include
#include
#define MAX 1000
using namespace std;
struct Person{
	string m_Name;
	int m_Sex;
	int m_Age;
	string m_Num;
	string m_Address;
};
struct bj{
	struct Person personArray[MAX];
	int m_Size;	
};

主界面的展示:

void showMenu(){
	cout<<"-----------------------------------"<<endl;
	cout<<"-----------1.输入联系人------------"<<endl;
	cout<<"-----------2.查找联系人------------"<<endl;
	cout<<"-----------3.修改联系人------------"<<endl;
	cout<<"-----------4.删除联系人------------"<<endl;
	cout<<"-----------5.清空联系人------------"<<endl;
	cout<<"-----------6.显示联系人------------"<<endl;
	cout<<"-----------0.退出系统--------------"<<endl;
	cout<<"-----------------------------------"<<endl; 
} 

添加学生信息:
首先我们先对班级进行一个测试,如果班级已满,就不进行操作,
反之,进行信息的添加。

void addPerson(bj *abs){
	
	if(abs->m_Size==MAX){                     //判断通讯塔是否已满
		cout<<"班级已满,不能再添加任何信息!"<<endl;
		return;	} 
	else{
	string name;
	cout<<"请输入姓名:"<<endl;
	cin>>name;
    abs->personArray[abs->m_Size].m_Name=name;	
	//利用m_Size作为当前下标将输入的姓名赋值给当前下标的人 
	
	
	
	cout<<"请输入性别:"<<endl;
	cout<<"1---男"<<endl;
	cout<<"2---女"<<endl; 
	int sex=0;
	while(true){
	    cin>>sex;               //如果是1或2,可以退出循环	
	    if(sex==1||sex==2){
		abs->personArray[abs->m_Size].m_Sex=sex;
		break;}
        cout<<"输入有误,请重新输入"<<endl;	}
    
	
	 cout<<"请输入年龄:"<<endl;
     int age=0;
	 cin>>age;
     while(age>120){   	
     	cout<<"请重新输入年龄:"<<endl; 
     	cin>>age;
	 } 
     abs->personArray[abs->m_Size].m_Age=age;
    
    
	
	cout<<"请输入联系电话:"<<endl;
    string num;
    cin>>num;
    abs->personArray[abs->m_Size].m_Num=num;
    
    
	
	cout<<"请输入家庭地址:"<<endl;
    string addr;
    cin>>addr;
    abs->personArray[abs->m_Size].m_Address=addr;
	}
	
	
	abs->m_Size++;
	cout<<"信息更新成功"<<endl;
	system("pause"); 
	system("cls");           //清屏操作 
}

信息全展示代码:

void showPerson( const bj* abs){ //const说明显示功能只能显示,不能进行修改 
	if(abs->m_Size==0){               //先判断班级是否为空 
		cout<<"通讯录为空,无法显示!"<<endl; 
	}
	else{
		for(int i=0;i<abs->m_Size;i++){
		cout<<"姓名:"<<abs->personArray[i].m_Name<<'\t';
		cout<<"性别:"<<(abs->personArray[i].m_Sex==1?"男":"女")<<'\t';
		cout<<"年龄:"<<abs->personArray[i].m_Age<<'\t';
		cout<<"联系电话:"<<abs->personArray[i].m_Num<<'\t';
		cout<<"家庭住址:"<<abs->personArray[i].m_Address<<endl;
		}	
	}
	system("pause");
	system("cls");          //清屏操作
} 

对姓名查找功能的判断:返回值传递给需要的功能

int isExist(bj *abs,string name){
	for(int i=0;i<abs->m_Size;i++){
		if(abs->personArray[i].m_Name==name){
			return i;
		}
	
	}
	return -1;
}

删除功能:

void deletePerson(bj* abs){
	cout<<"请输入您要删除人的姓名:"<<endl;
	string name;
	cin>>name;
    int ret=isExist(abs,name);
    if(ret!=-1){
   	for(int i=ret;i<abs->m_Size;i++)
   	{
   		abs->personArray[i]=abs->personArray[i+1];
	   }
	   abs->m_Size--;//更新班级人数
	   cout<<"删除成功!"<<endl; 
    }
    else{
   	cout<<"查无此人!"<<endl;
    }
    system("pause");
    system("cls");
    
}

查找功能:

void findPerson(bj* abs){
	cout<<"请输入您要查找的学生名:"<<endl;
	string name;
	cin>>name;
	int ret=isExist(abs,name);
	if(ret!=-1){                         //ret记录的是查询的下标 
		cout<<"姓名:"<<abs->personArray[ret].m_Name<<'\t';
		cout<<"性别:"<<abs->personArray[ret].m_Sex<<'\t';
		cout<<"年龄:"<<abs->personArray[ret].m_Age<<'\t';
		cout<<"联系电话:"<<abs->personArray[ret].m_Num<<'\t';
		cout<<"家庭住址:"<<abs->personArray[ret].m_Address<<'\t';	}
	else{
		cout<<"查无此人!"<<endl;
	}
	system("pause");
	system("cls"); 
}

修改功能:

void changePerson(bj* abs){
	cout<<"请输入您要修改的联系人:"<<endl;
	string name;
	cin>>name;
	int ret=isExist(abs,name);
	if(ret!=-1){
		cout<<"请输入姓名:"<<endl;
		string name;
		cin>>name;
		abs->personArray[ret].m_Name=name;
		
		
		cout<<"请输入性别:"<<endl; 
		int sex=0;
		while(true){
			cin>>sex;
		    if(sex==1||sex==2){
			abs->personArray[ret].m_Sex=sex;break;
		}
		cout<<"输入错误,请重新输入!"<<endl;
		}
		
		
		cout<<"请输入年龄:"<<endl;
		int age=0;
		cin>>age;
		while(age>120){
			cout<<"请输入正确数字:"<<endl;
			cin>>age;
		}		
		abs->personArray[ret].m_Age=age;
		
		
		cout<<"请输入联系电话:"<<endl;
		string num;
		cin>>num;
		abs->personArray[ret].m_Num=num;
		
		cout<<"请输入家庭住址:"<<endl;
		string addr;
		cin>>addr;
		abs->personArray[ret].m_Address=addr;	
			
			} 
	else{
		cout<<"查无此人!"<<endl;
	}
	system("pause");
	system("cls");
}

清空功能:

void cleanPerson(bj* abs){
	cout<<"是否真到要清空,是(1)/否(2)"<<endl;
	int a;
	cin>>a;
	if(a==1) {
	abs->m_Size=0;
	cout<<"班级已清空"<<endl;
	}
	if(a==2);	
	system("pause");
	system("cls"); 
}

主界面:

int main(){
    bj abs;
    abs.m_Size=0;
	int a=0;
	while(true){
	showMenu();
	cout<<"请输入你想进行的操作:"<<endl; 
	cin>>a;
	 switch(a){
	 	case 1:  addPerson(&abs);        //1、添加信息 利用地址传递修饰实参 
	 		break;
	 	case 2:  findPerson(&abs);       //2、 查询学生信息
	 		break;
	 	case 3:  changePerson(&abs);     //3、修改学生信息
	 		break;
	 	case 4:  deletePerson(&abs);     //4、删除学生信息
	 		break;
	 	case 5:  cleanPerson(&abs);      //5、清空学生信息
	 		break;
	 	case 6:  showPerson(&abs);       //6、展示学生信息
	 		break;
	 	case 0: cout<<"欢迎下次使用"<<endl;
		 return 0; 
		    break; 
	 }
	}
	return 0;
} 

二、全部代码。

#include
#include
#define MAX 1000
using namespace std;
struct Person{
	string m_Name;
	int m_Sex;
	int m_Age;
	string m_Num;
	string m_Address;
};


struct bj{
	struct Person personArray[MAX];//通讯录里的人的数组 
	int m_Size;	//通讯录的最大容量 
};


void showMenu(){
	cout<<"-----------------------------------"<<endl;
	cout<<"-----------1.输入联系人------------"<<endl;
	cout<<"-----------2.查找联系人------------"<<endl;
	cout<<"-----------3.修改联系人------------"<<endl;
	cout<<"-----------4.删除联系人------------"<<endl;
	cout<<"-----------5.清空联系人------------"<<endl;
	cout<<"-----------6.显示联系人------------"<<endl;
	cout<<"-----------0.退出系统--------------"<<endl;
	cout<<"-----------------------------------"<<endl; 
} 


void addPerson(bj *abs){
	
	if(abs->m_Size==MAX){                     //判断通讯塔是否已满
		cout<<"通讯录已满,不能再添加任何信息!"<<endl;
		return;	} 
	else{
	string name;
	cout<<"请输入姓名:"<<endl;
	cin>>name;
    abs->personArray[abs->m_Size].m_Name=name;	
	//利用m_Size作为当前下标将输入的姓名赋值给当前下标的人 
	
	
	
	cout<<"请输入性别:"<<endl;
	cout<<"1---男"<<endl;
	cout<<"2---女"<<endl; 
	int sex=0;
	while(true){
	    cin>>sex;               //如果是1或2,可以退出循环	
	    if(sex==1||sex==2){
		abs->personArray[abs->m_Size].m_Sex=sex;
		break;}
        cout<<"输入有误,请重新输入"<<endl;	}
    
	
	 cout<<"请输入年龄:"<<endl;
     int age=0;
	 cin>>age;
     while(age>120){   	
     	cout<<"请重新输入年龄:"<<endl; 
     	cin>>age;
	 } 
     abs->personArray[abs->m_Size].m_Age=age;
    
    
	
	cout<<"请输入联系电话:"<<endl;
    string num;
    cin>>num;
    abs->personArray[abs->m_Size].m_Num=num;
    
    
	
	cout<<"请输入家庭地址:"<<endl;
    string addr;
    cin>>addr;
    abs->personArray[abs->m_Size].m_Address=addr;
	}
	
	
	abs->m_Size++;
	cout<<"信息更新成功"<<endl;
	system("pause"); 
	system("cls");           //清屏操作 
}


void showPerson( const bj* abs){ //const说明显示功能只能显示,不能进行修改 
	if(abs->m_Size==0){               //先判断通讯录是否为空 
		cout<<"通讯录为空,无法显示!"<<endl; 
	}
	else{
		for(int i=0;i<abs->m_Size;i++){
		cout<<"姓名:"<<abs->personArray[i].m_Name<<'\t';
		cout<<"性别:"<<(abs->personArray[i].m_Sex==1?"男":"女")<<'\t';
		cout<<"年龄:"<<abs->personArray[i].m_Age<<'\t';
		cout<<"联系电话:"<<abs->personArray[i].m_Num<<'\t';
		cout<<"家庭住址:"<<abs->personArray[i].m_Address<<endl;
		}	
	}
	system("pause");
	system("cls");
} 
int isExist(bj *abs,string name){
	for(int i=0;i<abs->m_Size;i++){
		if(abs->personArray[i].m_Name==name){
			return i;
		}
	
	}
	return -1;
}


void deletePerson(bj* abs){
	cout<<"请输入您要删除人的姓名:"<<endl;
	string name;
	cin>>name;
    int ret=isExist(abs,name);
    if(ret!=-1){
   	for(int i=ret;i<abs->m_Size;i++)
   	{
   		abs->personArray[i]=abs->personArray[i+1];
	   }
	   abs->m_Size--;//更新通讯录人数
	   cout<<"删除成功!"<<endl; 
    }
    else{
   	cout<<"查无此人!"<<endl;
    }
    system("pause");
    system("cls");
    
}


void findPerson(bj* abs){
	cout<<"请输入您要查找的联系人:"<<endl;
	string name;
	cin>>name;
	int ret=isExist(abs,name);
	if(ret!=-1){                         //ret记录的是查询的下标 
		cout<<"姓名:"<<abs->personArray[ret].m_Name<<'\t';
		cout<<"性别:"<<abs->personArray[ret].m_Sex<<'\t';
		cout<<"年龄:"<<abs->personArray[ret].m_Age<<'\t';
		cout<<"联系电话:"<<abs->personArray[ret].m_Num<<'\t';
		cout<<"家庭住址:"<<abs->personArray[ret].m_Address<<'\t';	}
	else{
		cout<<"查无此人!"<<endl;
	}
	system("pause");
	system("cls"); 
}


void changePerson(bj* abs){
	cout<<"请输入您要修改的联系人:"<<endl;
	string name;
	cin>>name;
	int ret=isExist(abs,name);
	if(ret!=-1){
		cout<<"请输入姓名:"<<endl;
		string name;
		cin>>name;
		abs->personArray[ret].m_Name=name;
		
		
		cout<<"请输入性别:"<<endl; 
		int sex=0;
		while(true){
			cin>>sex;
		    if(sex==1||sex==2){
			abs->personArray[ret].m_Sex=sex;break;
		}
		cout<<"输入错误,请重新输入!"<<endl;
		}
		
		
		cout<<"请输入年龄:"<<endl;
		int age=0;
		cin>>age;
		while(age>120){
			cout<<"请输入正确数字:"<<endl;
			cin>>age;
		}		
		abs->personArray[ret].m_Age=age;
		
		
		cout<<"请输入联系电话:"<<endl;
		string num;
		cin>>num;
		abs->personArray[ret].m_Num=num;
		
		cout<<"请输入家庭住址:"<<endl;
		string addr;
		cin>>addr;
		abs->personArray[ret].m_Address=addr;	
			
			} 
	else{
		cout<<"查无此人!"<<endl;
	}
	system("pause");
	system("cls");
}


void cleanPerson(bj* abs){
	cout<<"是否真到要清空,是(1)/否(2)"<<endl;
	int a;
	cin>>a;
	if(a==1) {
	abs->m_Size=0;
	cout<<"通讯录已清空"<<endl;
	}
	if(a==2);	
	system("pause");
	system("cls"); 
}
int main(){
    bj abs;
    abs.m_Size=0;
	int a=0;
	while(true){
	showMenu();
	cout<<"请输入你想进行的操作:"<<endl; 
	cin>>a;
	 switch(a){
	 	case 1:  addPerson(&abs);        //1、添加联系人 利用地址传递修饰实参 
	 		break;
	 	case 2:  findPerson(&abs);
	 		break;
	 	case 3:  changePerson(&abs);
	 		break;
	 	case 4:  deletePerson(&abs);
	 		break;
	 	case 5:  cleanPerson(&abs);
	 		break;
	 	case 6:  showPerson(&abs); 
	 		break;
	 	case 0: cout<<"欢迎下次使用"<<endl;
		 return 0; 
		    break; 
	 }
	}	
	return 0;
} 

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