[开发工具]【c++】学生管理系统1.0

按照网友要求，我做了一个学生管理系统

?花了好几天（主要是因为构思和做其他事情花了一些时间）

#undef UNICODE
#undef _UNICODE
#include<iostream>
#include<iomanip>
#include<string>
#include<cstdlib>
#include<ctime>
#include<windows.h>
#include<conio.h>
#include<fstream>
#include<algorithm>
using namespace std;
namespace b_game
{
	
	//常量
	const long long ESC=27,
					Enter=13,
					Tab=9,
					Shang=38,
					Xia=40,
					Zuo=37,
					You=39,
					Kong=' ',
					z_sb=VK_LBUTTON,
					y_sb=VK_RBUTTON,
					Shift=VK_SHIFT,
					z_Shift=VK_LSHIFT,
					y_Shift=VK_RSHIFT,
					Ctrl=VK_CONTROL,
					z_Ctrl=VK_LCONTROL,
					y_Ctrl=VK_RCONTROL,
					Alt=VK_MENU,
					z_Alt=VK_LMENU,
					y_Alt=VK_RMENU,
					A='A',
					B='B',
					C='C',
					D='D',
					E='E',
					F='F',
					G='G',
					H='H',
					I='I',
					J='J',
					K='K',
					L='L',
					M='M',
					N='N',
					O='O',
					P='P',
					Q='Q',
					R='R',
					S='S',
					T='T',
					U='U',
					V='V',
					W='W',
					X='X',
					Y='Y',
					Z='Z';
	
	//结构体
	struct hl//行列
	{
		long long h,l;
	};
	
	//函数
	bool axj(long long key)
	{
		return (GetKeyState(key)<0);
	}
	void bout(string n, long long s=50,bool f=0,char key=13)//输出
	{
		for (long long i = 0; i < n.size(); i++)
		{
			if (f&&GetKeyState(key)<0)
			{
				cout<<n.substr(i,n.size());
				return ;
			}
			cout << n[i];
			Sleep(s);
		}
		return;
	}
	void gs(long long h, long long l, string z)//格式
	{
		for (long long i = 1; i <= h; i++)
			cout << "\n";
		for (long long i = 1; i <= l; i++)
			cout << " ";
		cout << z;
		return;
	}
	void yanse(int n)//颜色
	{
		SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE), n);
		return;
	}
	void ycbj()//移除快速编辑模式
	{
		HANDLE hStdin = GetStdHandle(STD_INPUT_HANDLE);
		DWORD mode;
		GetConsoleMode(hStdin, &mode);
		mode&=~ENABLE_QUICK_EDIT_MODE;
		SetConsoleMode(hStdin, mode);
		return ;
	}
	void ycgb()//隐藏光标
	{
		CONSOLE_CURSOR_INFO cursor;
		cursor.bVisible = FALSE;
		cursor.dwSize = sizeof(cursor);
		HANDLE handle = GetStdHandle(STD_OUTPUT_HANDLE);
		SetConsoleCursorInfo(handle, &cursor);
		return;
	}
	void ydgb(long long h, long long l)//移动光标
	{
		COORD pos = { l-1,h-1 };
		HANDLE hOut = GetStdHandle(STD_OUTPUT_HANDLE);
		SetConsoleCursorPosition(hOut, pos);
		return;
	}
}
using namespace b_game;
long long rens;
bool cx_flag=1;
struct _st
{
	string mz,js;
	long long nj,xh;
	bool xb,f;
}st[10000000],csst={"","",0,0,1,1},ls;
bool cmp(_st _1,_st _2)
{
	if(_1.f&&_2.f)
	{
		return _1.xh<_2.xh;
	}
	else
	{
		if(_1.f)
		{
			return 1;
		}
		else
		{
			return 0;
		}
	}
}
namespace cd
{
	void out()
	{
		long long tot=0;
		ofstream cd1("信息.txt");
		for(long long i=1;i<=rens;i++)
		{
			if(st[i].f)
			{
				cd1<<st[i].mz<<"\n";
				cd1<<st[i].xh<<"\n";
				cd1<<st[i].xb<<"\n";
				cd1<<st[i].nj<<"\n";
				cd1<<st[i].js<<"\n";
				cd1<<"\n";
			}
			else
			{
				tot++;
			}
		}
		rens-=tot;
		cd1.close();
		ofstream cd2("人数.txt");
		cd2<<rens<<"\n";
		cd2.close();
		return ;
	}
	void in()
	{
		ifstream cd1("人数.txt");
		cd1>>rens;
		cd1.close();
		ifstream cd2("信息.txt");
		for(long long i=1;i<=rens;i++)
		{
			cd2>>st[i].mz;
			cd2>>st[i].xh;
			cd2>>st[i].xb;
			cd2>>st[i].nj;
			cd2>>st[i].js;
			st[i].f=1;
		}
		cd2.close();
		return ;
	}
};
void zy();
void zc();
void sc();
void ck();
int main()
{
	yanse(240);
	system("cls");
	system("mode con cols=80 lines=20");
	system("title 学生管理系统");
	ycbj();
	cout<<"正在加载...";
	cd::in();
	ls=csst;
	system("cls");
	while(cx_flag)
	{
		system("cls");
		zy();
	}
	system("cls");
	cout<<"正在储存数据...";
	cd::out();
	return 0;
}
void zy()
{
	system("cls");
	char s;
	gs(3,30,"学生管理系统");
	gs(3,30,"0.退出");
	gs(2,30,"1.注册");
	gs(2,30,"2.删除");
	gs(2,30,"3.查看\n\n\n\n\n\n\n                                                                                ");
	s=_getch();
	while(s!='0'&&s!='1'&&s!='2'&&s!='3')s=_getch();
	switch(s)
	{
		case '0':
			cx_flag=0;
			system("cls");
			return ;
		case '1':
			zc();
			break;
		case '2':
			sc();
			break;
		case '3':
			ck();
			break;
	}
	return ;
}
void zc()
{
	ls=csst;
	string t;
	system("cls");
	gs(1,1,"姓名：");
	cin>>ls.mz;
	gs(1,1,"学号：");
	cin>>ls.xh;
	for(long long i=1;i<=rens;i++)
	{
		if(st[i].xh==ls.xh&&st[i].f)
		{
			cout<<"\n该学号已存在";
			ls=csst;
			Sleep(1000);
			system("cls");
			return ;
		}
	}
	gs(1,1,"年龄：");
	cin>>ls.nj;
	gs(1,1,"性别(男/女或1/0或b/g)：");
	cin>>t;
	if(t!="男"&&t!="女"&&t!="1"&&t!="0"&&t!="b"&&t!="g")
	{
		cout<<"\n请按要求输入";
		ls=csst;
		Sleep(1000);
		system("cls");
		return ;
	}
	if(t=="男"||t=="1"||t=="b")
	{
		ls.xb=1;
	}
	else
	{
		ls.xb=0;
	}
	gs(1,1,"请输入该学生介绍(下划线(_)表示换行&下一行继续写)：\n");
	ls.js="";
	string s;
	do
	{
		cin>>s;
		ls.js+=s;
	}
	while(s[s.size()-1]=='_');
	system("cls");
	cout<<"注册成功！";
	rens++;
	st[rens]=ls;
	sort(st+1,st+rens+1,cmp);
	Sleep(1000);
	return ;
}
void sc()
{
	long long t;
	system("cls");
	gs(1,1,"请输入要删除的学生的学号：");
	cin>>t;
	for(long long i=1;i<=rens;i++)
	{
		if(t==st[i].xh&&st[i].f)
		{
			st[i].f=0;
			cout<<"删除成功";
			Sleep(1000);
			system("cls");
			return ;
		}
	}
	cout<<"无此学生";
	Sleep(1000);
	system("cls");
	return ;
}
void ck()
{
	system("cls");
	long long t;
	char s;
	for(long long i=1;i<=rens;i++)
	{
		if(st[i].f)
		{
			cout<<st[i].xh<<" ";
		}
	}
	cout<<"\n请输入你要查看的学生的学号：";
	cin>>t;
	for(long long i=1;i<=rens;i++)
	{
		if(st[i].xh==t&&st[i].f)
		{
			system("cls");
			cout<<"名字："<<st[i].mz<<"\n";
			cout<<"学号："<<st[i].xh<<"\n";
			cout<<"年龄："<<st[i].nj<<"\n";
			cout<<"性别："<<((st[i].xb==1)?("男"):("女"))<<"\n";
			cout<<"介绍：\n";
			for(long long j=0;j<st[i].js.size();j++)
			{
				if(st[i].js[j]=='_')
				{
					cout<<"\n";
				}
				else
				{
					cout<<st[i].js[j];
				}
			}
			cout<<"\n--------------------------------------------------------------------------------\n按空格继续";
			s=_getch();
			while(s!=' ')s=_getch();
			system("cls");
			return ;
		}
	}
	cout<<"没有这个学生！\n";
	Sleep(1000);
	system("cls");
	return ;
}