xue.txt

学籍管理系统 vc++做的 很有用希望可以帮助到大家

// 学生社团管理系统.cpp : Defines the entry point for the console application.
//

#include<iostream>
#include<string>
#include<fstream>
using namespace std;
class CStudent  
{
public:
	string ID;
	string Name;
	string Sex;
	string BanJi;
	string College;
	CStudent();
};
CStudent::CStudent()
{
}

int main(int argc, char* argv[])
{
	cout<<"***********************************************************************"<<endl;
	cout<<"*************************************学籍管理系统**********************"<<endl;
	cout<<"***********************************************************************"<<endl;
	
	CStudent  student[1000];
	int i = 0 ;
	int TotalNum = 0;
	ifstream fin("student.txt");
	string str;
	string ID , Name , Sex , BanJi , College;
	while(!fin.eof())
	{
		getline(fin,str);
		student[i].ID = str;
		getline(fin,str);
		student[i].Name = str;
		getline(fin,str);
		student[i].Sex= str;
		getline(fin,str);
		student[i].BanJi = str;
		getline(fin,str);
		student[i].College = str;
		i++;
	}
	fin.clear();
	fin.close();
	TotalNum = i;
	while(1)
	{
		cout<<"请选择您要进行的操作：1 添加。 2 删除。3 修改。 4 查询。 5 退出"<<endl;
		cin>>i;
		///////////////////
		switch(i)
		{
			case 1:
				{
					while(1)
					{
						cout<<"添加信息"<<endl;
						cout<<"请输入学号："; cin >>ID; cout<<endl;
						cout<<"请输入姓名："; cin >>Name; cout<<endl;
						cout<<"请输入性别："; cin >>Sex; cout<<endl;
						cout<<"请输入班机："; cin >>BanJi; cout<<endl;
						cout<<"请输入学院："; cin >>College; cout<<endl;
						student[TotalNum].ID    = ID;					
						student[TotalNum].Name  = Name;					
						student[TotalNum].Sex   = Sex;					
						student[TotalNum].BanJi = BanJi;					
						student[TotalNum].College = College;
						TotalNum++;
						cout<<"继续 Y 退出 N"<<endl;
						cin >>str;
						if(str == "N"||str == "n")
						{
							break;
						}
					}
				};
				break;
			case 2:
				{
					while(1)
					{
						cout<<"查询信息"<<endl;
						cout<<"请输入要删除学员学号："; cin >>ID; cout<<endl;
						int i =0;
						int j =0;
						int index = -1;
						for(i =0 ; i < TotalNum ; i++)
						{
						   if(student[i].ID == ID)
							   index = i;
							   break;
						}
						if(index == -1)
						{
							cout<<"学号输入错误!或者该学员不存在!"<<endl;;
						}
						else
						{
							for(i =index ; i < TotalNum ; i++)
							{
								student[i] = student[i+1];
							}
							TotalNum--;
						}
						
						cout<<"继续 Y 退出 N"<<endl;
						cin >>str;
						if(str == "N"||str == "n")
						{
							break;
						}
					}						
				};
				break;
			case 3:
				{
					while(1)
					{
						cout<<"修改信息"<<endl;
						cout<<"请输入要修改学员学号："; cin >>ID; cout<<endl;
						int i =0;
						int j =0;
						int index = -1;
						for(i =0 ; i < TotalNum ; i++)
						{
						   if(student[i].ID == ID)
							   index = i;
							   break;
						}
						if(index == -1)
						{
							cout<<"学号输入错误!或者该学员不存在!"<<endl;;
						}
						else
						{
							
							cout<<"请输入学号："; cin >>ID; cout<<endl;
							cout<<"请输入姓名："; cin >>Name; cout<<endl;
							cout<<"请输入性别："; cin >>Sex; cout<<endl;
							cout<<"请输入班机："; cin >>BanJi; cout<<endl;
							cout<<"请输入学院："; cin >>College; cout<<endl;
							student[index].ID    = ID;					
							student[index].Name  = Name;					
							student[index].Sex   = Sex;					
							student[index].BanJi = BanJi;					
							student[index].College = College;
							
						}
						
						cout<<"继续 Y 退出 N"<<endl;
						cin >>str;
						if(str == "N"||str == "n")
						{
							break;
						}
					}						
				};
				break;
			case 4:
				{
					while(1)
					{
						cout<<"查询信息"<<endl;
						cout<<"1 输入学号查询学生信息。2 输入班级号查询班级信息	"<<endl;
						int c;
						int i , index=-1;
						cin>>c;

						switch(c)
						{
							case 1:
								{
									cout<<"请输入学员学号："; cin >>ID; cout<<endl;					
									for(i =0 ; i < TotalNum ; i++)
									{
									   if(student[i].ID == ID)
										   index = i;
										   break;
									}
									if(index == -1)
									{
										cout<<"学号输入错误!或者该学员不存在!"<<endl;;
									}
									else
									{
										cout<<"学号："<<student[index].ID; cout<<endl;
										cout<<"姓名："<<student[index].Name; cout<<endl;
										cout<<"性别："<<student[index].Sex; cout<<endl;
										cout<<"班机："<<student[index].BanJi; cout<<endl;
										cout<<"学院："<<student[index].College; cout<<endl;
									}
								};
								break;
							case 2:
								{
									cout<<"请输入班级号："; cin >>BanJi; cout<<endl;					
									for(i =0 ; i < TotalNum ; i++)
									{									 
									   if(student[i].BanJi == BanJi)
									   {								
										   index = i;	
										   cout<<"学号："<<student[i].ID<<"  姓名："<<student[i].Name<<"“性别："<<student[i].Sex;
										   cout<<endl;	
									   }
									}
									if(index == -1)
									{
										cout<<"班级号输入错误！"<<endl;
									}
								};
								break;
						}
						
						
						cout<<"继续 Y 退出 N"<<endl;
						cin >>str;
						if(str == "N"||str == "n")
						{
							break;
						}
					}						
				};
				break;
			case 5:
				break;
			default:
				cout<<"输入错误！！！"<<endl;

		}
		//////////////////////
	}
	ofstream fout("student.txt");
	for(i = 0 ; i < TotalNum ; i ++)
	{
		fout<<student[i].ID<<endl;
		fout<<student[i].Name<<endl;
		fout<<student[i].Sex<<endl;
		fout<<student[i].BanJi<<endl;
		fout<<student[i].College<<endl;
	}

	return 0;
}