lwx.c

这是我自己做的C学生管理系统

#include <windows.h>
#include <stdio.h>
#include "resource.h"

#define COL 6
#define ROW 16

#define MAX_LENTH 100
HINSTANCE hInst;
TCHAR szTitle[MAX_LENTH]="学生信息管理系统";
TCHAR szWindowClass[MAX_LENTH]="hello";

typedef struct Stu
{
	char StuNum[10];
	char StuName[10];
	char StuAge[4];
	char StuSex[4];
	char StuPhone[20];
	char StuOICQ[10];
}stu;

struct node
{
	stu per;
	struct node *next;
};

struct node *head=NULL,*p=NULL,*q=NULL,*New=NULL;
struct node *sNew=NULL,*sHead=NULL,*sp=NULL;
int lenth=0;//链表长度
int Change = 0;
int nRet = 0;//判断是否确定
int selectNum=0;//单选框判断时的状态
int sAbsCount=0;//当前查找链表记录数
int AbsPage=1;
int ReCount = 0;
int PageCount=0;

ATOM   MyRegisterClass(HINSTANCE hInstance);
BOOL   InitInstance(HINSTANCE,int);
LRESULT CALLBACK WndProc(HWND,UINT,WPARAM,LPARAM);

INT APIENTRY WinMain(HINSTANCE hInstance,HINSTANCE hPrevInstance,LPSTR lpCmdLine,int nCmdShow)
{
	MSG msg;
	//对文件中的数据进行加载
	FILE *fp;
	fp=fopen("read.save","r");
	if(fp!=NULL)
	{
		while(!feof(fp))
		{
			New=(struct node *)malloc(sizeof(struct node));
			fscanf(fp,"%s%s%s%s%s%s\n",New->per.StuNum,New->per.StuName,New->per.StuAge,New->per.StuSex,New->per.StuPhone,New->per.StuOICQ);
			New->next=NULL;
			if(head==NULL)
			{head=New;}
			else
			{
				for(p=head;p->next!=0;)
				{
					p=p->next;
				}
				p->next=New;
			}
			lenth++;
		}
	}
	fclose(fp);
	MyRegisterClass(hInstance);

	//初始化并创建窗口：
	if(!InitInstance(hInstance,nCmdShow)) return FALSE;

	//主消息循环
	while(GetMessage(&msg,NULL,0,0))
	{
		TranslateMessage(&msg);//转换消息
		DispatchMessage(&msg);//发放消息
	}
	return msg.wParam ;
}

//注册窗口类
ATOM MyRegisterClass(HINSTANCE hInstance)
{
	WNDCLASSEX wcex;
	wcex.cbSize=sizeof(WNDCLASSEX);
	wcex.style=CS_HREDRAW|CS_VREDRAW;
	wcex.lpfnWndProc=(WNDPROC)WndProc;
	wcex.cbClsExtra=0;
	wcex.cbWndExtra=0;
	wcex.hInstance=hInstance;
	wcex.hIcon=NULL;
	wcex.hCursor=LoadCursor(NULL,IDC_ARROW);
	wcex.hbrBackground=(HBRUSH)(COLOR_WINDOW+1);
	wcex.lpszMenuName=(char*)IDR_MENU1;
	wcex.lpszClassName=szWindowClass;
	wcex.hIconSm=NULL;
	return RegisterClassEx(&wcex);//调用API函数注册窗口类
}

//初始化应用程序示例并创建窗口
BOOL InitInstance(HINSTANCE hInstance,int nCmdShow)
{
	HWND hWnd;
	//保存应用程序示例到一个全局变量，防止以后需要使用
	hInst=hInstance;

	//创建窗口
	hWnd=CreateWindow(szWindowClass,szTitle,WS_OVERLAPPEDWINDOW|WS_SIZEBOX,
		CW_USEDEFAULT,0,CW_USEDEFAULT,0,NULL,NULL,hInstance,NULL);
	if(!hWnd) return FALSE;

	ShowWindow(hWnd,nCmdShow);//显示窗口
	UpdateWindow(hWnd);//更新窗口
	return TRUE;
}

LRESULT CALLBACK DialogBoxProcNEW(HWND hDlgWnd,UINT message,WPARAM wParam,LPARAM lParam)
{
	switch(message)
	{
	case WM_INITDIALOG:
		return TRUE;
	case WM_COMMAND:
		if(LOWORD(wParam)==IDOK) 
		{
			EndDialog(hDlgWnd,IDOK);
		}
		break;
	default:break;
	}
	return 0;
}

//增加新信息对话框回调函数
LRESULT CALLBACK DialogBoxProcADD(HWND hDlgWnd,UINT message,WPARAM wParam,LPARAM lParam)
{
	int key = 0;//判断输入学号是否重复
	char stuNum[10];
	struct node *mid;
	HWND hEditWnd1,hEditWnd2,hEditWnd3,hEditWnd4,hEditWnd5,hEditWnd6;
	switch(message)
	{
	case WM_INITDIALOG:
		return 1;
	case WM_COMMAND:
		if(LOWORD(wParam)==IDOK) //学号应该是唯一的!
		{
			New=(struct node *)malloc(sizeof(struct node));//增加新结点
			hEditWnd1=GetDlgItem(hDlgWnd,IDC_EDTNUM);//申请句柄保存文本框1的值
			GetWindowText(hEditWnd1,stuNum,sizeof(New->per.StuNum));//获得学号
			for(p=head;p!=0;)
			{
				if(!strcmp(p->per.StuNum,stuNum))//比较2个字符串
				{
					key = 1;//学号重复
					MessageBox(NULL,"该学号已使用!","系统消息",MB_OK);
					break;
				}
				p=p->next;
			}
			if(0 == key)
			{
				//先获取文本框句柄
				hEditWnd2=GetDlgItem(hDlgWnd,IDC_EDTNAM);
				hEditWnd3=GetDlgItem(hDlgWnd,IDC_EDTAGE);
				hEditWnd4=GetDlgItem(hDlgWnd,IDC_EDTSEX);
				hEditWnd5=GetDlgItem(hDlgWnd,IDC_EDTPHONE);
				hEditWnd6=GetDlgItem(hDlgWnd,IDC_EDTOICQ);
				//获取文本框中信息
				GetWindowText(hEditWnd1,New->per.StuNum,sizeof(New->per.StuNum));//学号
				GetWindowText(hEditWnd2,New->per.StuName,sizeof(New->per.StuName));//姓名
				GetWindowText(hEditWnd3,New->per.StuAge,sizeof(New->per.StuAge));
				GetWindowText(hEditWnd4,New->per.StuSex,sizeof(New->per.StuSex));
				GetWindowText(hEditWnd5,New->per.StuPhone,sizeof(New->per.StuPhone));
				GetWindowText(hEditWnd6,New->per.StuOICQ,sizeof(New->per.StuOICQ));
				
				New->next=0;

					if(lenth==0) //判断结点个数
					{
						head=New;
						p=New;
						lenth++;
					}
					else
					{//先寻找插入位置
						for(p=head;p->next!=NULL && lstrcmp(New->per.StuNum,p->per.StuNum) == 1;)
						{
							mid=p;
							p=p->next;
						}
						if(lstrcmp(New->per.StuNum,p->per.StuNum)==-1)
						{
							if(head==p)//链表非空插入到第一个结点
							{
								New->next = head;
								head = New;
							}
							else//链表非空时插入到中间
							{
								mid->next=New;
								New->next=p;
							}
						}
						else//链表不为空插入到最后
						{
							p->next=New;
							New->next=NULL;
						}
						lenth++;
					}
					Change=1;
			}
			nRet=1;
			
			EndDialog(hDlgWnd,IDOK);
		}
		if(LOWORD(wParam)==IDCANCEL) EndDialog(hDlgWnd,IDCANCEL);
		break;
	default:break;
	}
	return 0;
}

//删除信息对话框回调函数
LRESULT CALLBACK DialogBoxProcDEL(HWND hDlgWnd,UINT message,WPARAM wParam,LPARAM lParam)
{
	HWND hEditWnd1;
	char stuNum[20];
	switch(message)
	{
	case WM_INITDIALOG:
		return 1;
	case WM_COMMAND:
		if(LOWORD(wParam)==IDOK) 
		{
			hEditWnd1=GetDlgItem(hDlgWnd,IDC_EDIT1);
			GetWindowText(hEditWnd1,stuNum,sizeof(New->per.StuNum));//获得要删除学生的学号
			p=head;
			while(p!=0)
			{
				if(!strcmp(p->per.StuNum,stuNum))//如果两字符串相同时
				{
					lenth--;
					if(p==head) 
					{
						head=p->next;
						free(p);
					}
					else
					{
						q->next=p->next;
						free(p);
					}
					break;
				}
				else
				{
					q=p;
					p=p->next;
				}
			}
			nRet=1;
			Change=1;
			EndDialog(hDlgWnd,IDOK);
		}

		if(LOWORD(wParam)==IDCANCEL) EndDialog(hDlgWnd,IDCANCEL);
		break;
	default:break;
	}
	return 0;
}

//更改信息对话框回调函数
LRESULT CALLBACK DialogBoxProcMODIFY(HWND hDlgWnd,UINT message,WPARAM wParam,LPARAM lParam)
{
	char stuNum[10];//获取文本框中的学生学号
	HWND hEditWnd1=NULL,hEditWnd2=NULL,hEditWnd3=NULL,hEditWnd4=NULL,hEditWnd5=NULL;
	//先获取文本框句柄
	hEditWnd1=GetDlgItem(hDlgWnd,IDC_EDIT1);
	hEditWnd2=GetDlgItem(hDlgWnd,IDC_EDIT2);
	hEditWnd3=GetDlgItem(hDlgWnd,IDC_EDIT3);
	hEditWnd4=GetDlgItem(hDlgWnd,IDC_EDIT4);
	hEditWnd5=GetDlgItem(hDlgWnd,IDC_EDIT5);

	switch(message)
	{
	case WM_INITDIALOG:
		return TRUE;
	case WM_COMMAND:
		if(LOWORD(wParam)==IDOK) 
		{
			GetWindowText(hEditWnd1,stuNum,sizeof(p->per.StuNum));
			for(p=head;p!=NULL;p=p->next)
			{
				if(lstrcmp(p->per.StuNum,stuNum)==0)
				{
					//获取文本框中信息
					GetWindowText(hEditWnd2,p->per.StuName,sizeof(p->per.StuName));//姓名
					GetWindowText(hEditWnd3,p->per.StuAge,sizeof(p->per.StuAge));//年龄
					GetWindowText(hEditWnd4,p->per.StuPhone,sizeof(p->per.StuPhone));//电话
					GetWindowText(hEditWnd5,p->per.StuOICQ,sizeof(p->per.StuOICQ));//OICQ
					nRet=1;
					EndDialog(hDlgWnd,IDOK);
					Change=1;
					break;
				}
			}
			if(p == NULL)MessageBox(NULL,"此学生不存在!","系统消息",MB_OK);
		}

		if(LOWORD(wParam)==IDCANCEL) EndDialog(hDlgWnd,IDCANCEL);
		break;
	default:break;
	}
	return 0;
}

//查询对话框回调函数
LRESULT CALLBACK DialogBoxProcFIND(HWND hDlgWnd,UINT message,WPARAM wParam,LPARAM lParam)
{
	HWND hEditWnd1,hEditWnd2,hEditWnd3,hEditWnd4,hEditWnd5,hEditWnd6,hEditWnd7,hEditWnd8;
	char stuNum[20],stuNam[20];
	char C[20];
	int i=0,sum=0,j=0;
	//先获取文本框句柄
	hEditWnd1=GetDlgItem(hDlgWnd,IDC_EDIT1);
	hEditWnd2=GetDlgItem(hDlgWnd,IDC_EDIT2);
	hEditWnd3=GetDlgItem(hDlgWnd,IDC_EDIT3);
	hEditWnd4=GetDlgItem(hDlgWnd,IDC_EDIT4);
	hEditWnd5=GetDlgItem(hDlgWnd,IDC_EDIT5);
	hEditWnd6=GetDlgItem(hDlgWnd,IDC_EDIT6);
	hEditWnd7=GetDlgItem(hDlgWnd,IDC_EDIT7);
	hEditWnd8=GetDlgItem(hDlgWnd,IDC_EDIT8);
	switch(message)
	{
	case WM_INITDIALOG:
		EnableWindow(hEditWnd1,FALSE);
		return 1;
	case WM_COMMAND:
		if(LOWORD(wParam)==IDC_RADIO1) 
		{
			selectNum=1;
			EnableWindow(hEditWnd1,TRUE);
		}
		if(LOWORD(wParam)==IDC_RADIO2) 
		{
			selectNum=2;
			EnableWindow(hEditWnd1,TRUE);
		}
		if(LOWORD(wParam)==IDOK) 
		{
			if(selectNum==1)//学号唯一，按照学号找，只有1个
			{
				GetWindowText(hEditWnd1,stuNum,sizeof(stuNum));
				for(p=head;p!=NULL;)
				{
					if(!strcmp(p->per.StuNum,stuNum))
					{
						SetWindowText(hEditWnd2,p->per.StuNum);//学号
						SetWindowText(hEditWnd3,p->per.StuName);//姓名
						sprintf(C,"%s",(p->per.StuAge));
						SetWindowText(hEditWnd4,C);//年龄
						sprintf(C,"%s",(p->per.StuSex));
						SetWindowText(hEditWnd5,C);//性别
						sprintf(C,"%s",(p->per.StuPhone));
						SetWindowText(hEditWnd6,C);//电话
						sprintf(C,"%s",(p->per.StuOICQ));
						SetWindowText(hEditWnd7,C);//OICQ
						SetWindowText(hEditWnd8,"1");
						break;
					}
					p=p->next;
				}
				selectNum=0;
				if(p == NULL)
				{
					MessageBox(NULL,"查无此人!","系统消息",MB_OK);
				}
			}


			if(selectNum==2)//按照姓名查,可能有多条//将查找到的多条记录存在新的链表中
			{
				GetWindowText(hEditWnd1,stuNam,sizeof(New->per.StuName));
				for(p=head;p!=0;)
				{
					if(strstr(p->per.StuName,stuNam)!=0)//stuNam数组包含结构体中的stuNam项的时候，表示模糊查询
					{
						sNew=(struct node *)malloc(sizeof(struct node));
						strcpy(sNew->per.StuName,p->per.StuName);
						strcpy(sNew->per.StuNum,p->per.StuNum);
						strcpy(sNew->per.StuAge,p->per.StuAge);
						strcpy(sNew->per.StuSex,p->per.StuSex);
						strcpy(sNew->per.StuPhone,p->per.StuPhone);
						strcpy(sNew->per.StuOICQ,p->per.StuOICQ);