Question

c语言实际运用问题

求c语言实际运用的 开发实例

Answer 1

// Bounce.cpp : Defines the entry point for the application.
//

#include "stdafx.h"
#include <windows.h>
#define ID_TIMER 1

LRESULT CALLBACK WndProc (HWND, UINT, WPARAM, LPARAM) ;
int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance,
PSTR szCmdLine, int iCmdShow)
{
static TCHAR szAppName[] = TEXT ("Bounce") ;
HWND hwnd ;
MSG msg ;
WNDCLASS wndclass ;

wndclass.style = CS_HREDRAW | CS_VREDRAW ;
wndclass.lpfnWndProc = WndProc ;
wndclass.cbClsExtra = 0 ;
wndclass.cbWndExtra = 0 ;
wndclass.hInstance = hInstance ;
wndclass.hIcon = LoadIcon (NULL, IDI_APPLICATION) ;
wndclass.hCursor = LoadCursor (NULL, IDC_ARROW) ;
wndclass.hbrBackground = (HBRUSH) GetStockObject (WHITE_BRUSH) ;
wndclass.lpszMenuName = NULL ;
wndclass.lpszClassName = szAppName ;

if (!RegisterClass (&wndclass))
{
MessageBox ( NULL, TEXT ("This program requires Windows NT!"),
szAppName, MB_ICONERROR) ;
return 0 ;
}

hwnd = CreateWindow ( szAppName, TEXT ("Bouncing Ball"),
WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT, CW_USEDEFAULT,
CW_USEDEFAULT, CW_USEDEFAULT,
NULL, NULL, hInstance, NULL) ;

ShowWindow (hwnd, iCmdShow) ;
UpdateWindow (hwnd) ;
while (GetMessage (&msg, NULL, 0, 0))
{
TranslateMessage (&msg) ;
DispatchMessage (&msg) ;
}
return msg.wParam ;
}

LRESULT CALLBACK WndProc (HWND hwnd, UINT iMsg, WPARAM wParam, LPARAM lParam)
{
static HBITMAP hBitmap ;
static int cxClient, cyClient, xCenter, yCenter, cxTotal, cyTotal,
cxRadius, cyRadius, cxMove, cyMove, xPixel, yPixel ;
HBRUSH hBrush ;
HDC hdc, hdcMem ;
int iScale ;

switch (iMsg)
{
case WM_CREATE:
hdc = GetDC (hwnd) ;
xPixel = GetDeviceCaps (hdc, ASPECTX) ;
yPixel = GetDeviceCaps (hdc, ASPECTY) ;
ReleaseDC (hwnd, hdc) ;

SetTimer (hwnd, ID_TIMER, 50, NULL) ;
return 0 ;

case WM_SIZE:
xCenter = (cxClient = LOWORD (lParam)) / 2 ;
yCenter = (cyClient = HIWORD (lParam)) / 2 ;

iScale = min (cxClient * xPixel, cyClient * yPixel) / 16 ;

cxRadius = iScale / xPixel ;
cyRadius = iScale / yPixel ;

cxMove = max (1, cxRadius / 2) ;
cyMove = max (1, cyRadius / 2) ;

cxTotal = 2 * (cxRadius + cxMove) ;
cyTotal = 2 * (cyRadius + cyMove) ;

if (hBitmap)
DeleteObject (hBitmap) ;
hdc = GetDC (hwnd) ;
hdcMem = CreateCompatibleDC (hdc) ;
hBitmap = CreateCompatibleBitmap (hdc, cxTotal, cyTotal) ;
ReleaseDC (hwnd, hdc) ;

SelectObject (hdcMem, hBitmap) ;
Rectangle (hdcMem, -1, -1, cxTotal + 1, cyTotal + 1) ;

hBrush = CreateHatchBrush (HS_DIAGCROSS, 0L) ;
SelectObject (hdcMem, hBrush) ;
SetBkColor (hdcMem, RGB (255, 0, 255)) ;
Ellipse (hdcMem, cxMove, cyMove, cxTotal - cxMove, cyTotal - cyMove) ;
DeleteDC (hdcMem) ;
DeleteObject (hBrush) ;
return 0 ;

case WM_TIMER:
if (!hBitmap)
break ;

hdc = GetDC (hwnd) ;
hdcMem = CreateCompatibleDC (hdc) ;
SelectObject (hdcMem, hBitmap) ;

BitBlt (hdc, xCenter - cxTotal / 2,
yCenter - cyTotal / 2, cxTotal, cyTotal,
hdcMem, 0, 0, SRCCOPY) ;

ReleaseDC (hwnd, hdc) ;
DeleteDC (hdcMem) ;

xCenter += cxMove ;
yCenter += cyMove ;

if ((xCenter + cxRadius >= cxClient) || (xCenter - cxRadius <= 0))
cxMove = -cxMove ;

if ((yCenter + cyRadius >= cyClient) || (yCenter - cyRadius <= 0))
cyMove = -cyMove ;

return 0 ;

case WM_DESTROY:
if (hBitmap)
DeleteObject (hBitmap) ;

KillTimer (hwnd, ID_TIMER) ;
PostQuitMessage (0) ;
return 0 ;
}
return DefWindowProc (hwnd, iMsg, wParam, lParam) ;
}
以上代码就是windows程序设计的一个例子，可以做一个很小很小的游戏，就是C语言配合API函数实现的。 在VC6.0下选择win32 application就可以编译运行了。

Answer 2

遇到和我一样的问题，去找其他书籍咯，给你一个实际运用的大概也看个迷糊，因为里面包含了好多函数，噼里啪啦滴，哥我也纠结中啊，给你一个网上搜到的俄罗斯方块：
#include <stdio.h>
#include <dos.h>
#include <conio.h>
#include <graphics.h>
#include <stdlib.h>

#ifdef __cplusplus
#define __CPPARGS ...
#else
#define __CPPARGS
#endif
#define MINBOXSIZE 15 /* 最小方块的尺寸 */
#define BGCOLOR 7 /* 背景着色 */
#define GX 200
#define GY 10
#define SJNUM 10000 /* 每当玩家打到一万分等级加一级*/

/* 按键码*/
#define VK_LEFT 0x4b00
#define VK_RIGHT 0x4d00
#define VK_DOWN 0x5000
#define VK_UP 0x4800
#define VK_HOME 0x4700
#define VK_END 0x4f00
#define VK_SPACE 0x3920
#define VK_ESC 0x011b
#define VK_ENTER 0x1c0d

/* 定义俄罗斯方块的方向（我定义他为4种）*/
#define F_DONG 0
#define F_NAN 1
#define F_XI 2
#define F_BEI 3

#define NEXTCOL 20 /* 要出的下一个方块的纵坐标*/
#define NEXTROW 12 /* 要出的下一个方块的横从标*/
#define MAXROW 14 /* 游戏屏幕大小*/
#define MAXCOL 20
#define SCCOL 100 /*游戏屏幕大显示器上的相对位置*/
#define SCROW 60

int gril[22][16]; /* 游戏屏幕坐标*/
int col=1,row=7; /* 当前方块的横纵坐标*/
int boxfx=0,boxgs=0; /* 当前寺块的形壮和方向*/
int nextboxfx=0,nextboxgs=0,maxcol=22;/*下一个方块的形壮和方向*/
int minboxcolor=6,nextminboxcolor=6;
int num=0; /*游戏分*/
int dj=0,gamedj[10]={18,16,14,12,10,8,6,4,2,1};/* 游戏等级*/
/* 以下我用了一个3维数组来纪录方块的最初形状和方向*/
int boxstr[7][4][16]={{
{1,1,0,0,0,1,1,0,0,0,0,0,0,0,0,0},
{0,1,0,0,1,1,0,0,1,0,0,0,0,0,0,0},
{1,1,0,0,0,1,1,0,0,0,0,0,0,0,0,0},
{0,1,0,0,1,1,0,0,1,0,0,0,0,0,0,0}},
{
{0,1,1,0,1,1,0,0,0,0,0,0,0,0,0,0},
{1,0,0,0,1,1,0,0,0,1,0,0,0,0,0,0},
{0,1,1,0,1,1,0,0,0,0,0,0,0,0,0,0},
{1,0,0,0,1,1,0,0,0,1,0,0,0,0,0,0}},
{
{1,1,0,0,0,1,0,0,0,1,0,0,0,0,0,0},
{1,1,1,0,1,0,0,0,0,0,0,0,0,0,0,0},
{1,0,0,0,1,0,0,0,1,1,0,0,0,0,0,0},
{0,0,1,0,1,1,1,0,0,0,0,0,0,0,0,0}},
{
{1,1,0,0,1,0,0,0,1,0,0,0,0,0,0,0},
{1,0,0,0,1,1,1,0,0,0,0,0,0,0,0,0},
{0,1,0,0,0,1,0,0,1,1,0,0,0,0,0,0},
{1,1,1,0,0,0,1,0,0,0,0,0,0,0,0,0}},
{
{0,1,0,0,0,1,0,0,0,1,0,0,0,1,0,0},
{0,0,0,0,1,1,1,1,0,0,0,0,0,0,0,0},
{0,1,0,0,0,1,0,0,0,1,0,0,0,1,0,0},
{0,0,0,0,1,1,1,1,0,0,0,0,0,0,0,0}},
{
{1,1,0,0,1,1,0,0,0,0,0,0.0,0,0,0},
{1,1,0,0,1,1,0,0,0,0,0,0.0,0,0,0},
{1,1,0,0,1,1,0,0,0,0,0,0.0,0,0,0},
{1,1,0,0,1,1,0,0,0,0,0,0.0,0,0,0}},
{
{0,0,0,0,1,1,1,0,0,1,0,0,0,0,0,0},
{1,0,0,0,1,1,0,0,1,0,0,0,0,0,0,0},
{0,1,0,0,1,1,1,0,0,0,0,0.0,0,0,0},
{0,1,0,0,1,1,0,0,0,1,0,0,0,0,0,0}}

};

/* 随机得到当前方块和下一个方块的形状和方向*/
void boxrad(){
minboxcolor=nextminboxcolor;
boxgs=nextboxgs;
boxfx=nextboxfx;
nextminboxcolor=random(14)+1;
if(nextminboxcolor==4||nextminboxcolor==7||nextminboxcolor==8)
nextminboxcolor=9;
nextboxfx=F_DONG;
nextboxgs=random(7);
}
/*初始化图形模试*/
void init(int gdrive,int gmode){
int errorcode;
initgraph(&gdrive,&gmode,"D:\\tc\\");
errorcode=graphresult();
if(errorcode!=grOk){
printf("error of: %s",grapherrormsg(errorcode));
exit(1);
}
}

/* 在图形模式下的清屏 */
void cls()
{
setfillstyle(SOLID_FILL,0);
setcolor(0);
bar(0,0,640,480);
}
/*在图形模式下的高级清屏*/
void clscr(int a,int b,int c,int d,int color){
setfillstyle(SOLID_FILL,color);
setcolor(color);
bar(a,b,c,d);
}
/*最小方块的绘制*/
void minbox(int asc,int bsc,int color,int bdcolor){
int a=0,b=0;
a=SCCOL+asc;
b=SCROW+bsc;
clscr(a+1,b+1,a-1+MINBOXSIZE,b-1+MINBOXSIZE,color);
if(color!=BGCOLOR){
setcolor(bdcolor);
line(a+1,b+1,a-1+MINBOXSIZE,b+1);
line(a+1,b+1,a+1,b-1+MINBOXSIZE);
line(a-1+MINBOXSIZE,b+1,a-1+MINBOXSIZE,b-1+MINBOXSIZE);
line(a+1,b-1+MINBOXSIZE,a-1+MINBOXSIZE,b-1+MINBOXSIZE);
}
}

/*游戏中出现的文字*/
void txt(int a,int b,char *txt,int font,int color){
setcolor(color);
settextstyle(0,0,font);
outtextxy(a,b,txt);
}
/*windows 绘制*/
void win(int a,int b,int c,int d,int bgcolor,int bordercolor){
clscr(a,b,c,d,bgcolor);
setcolor(bordercolor);
line(a,b,c,b);
line(a,b,a,d);
line(a,d,c,d);
line(c,b,c,d);

}

/* 当前方块的绘制*/
void funbox(int a,int b,int color,int bdcolor){
int i,j;
int boxz[4][4];
for(i=0;i<16;i++)
boxz[i/4][i%4]=boxstr[boxgs][boxfx][i];
for(i=0;i<4;i++)
for(j=0;j<4;j++)
if(boxz[i][j]==1)
minbox((j+row+a)*MINBOXSIZE,(i+col+b)*MINBOXSIZE,color,bdcolor);
}
/*下一个方块的绘制*/
void nextfunbox(int a,int b,int color,int bdcolor){
int i,j;
int boxz[4][4];
for(i=0;i<16;i++)
boxz[i/4][i%4]=boxstr[nextboxgs][nextboxfx][i];
for(i=0;i<4;i++)
for(j=0;j<4;j++)
if(boxz[i][j]==1)
minbox((j+a)*MINBOXSIZE,(i+b)*MINBOXSIZE,color,bdcolor);
}
/*时间中断定义*/
#define TIMER 0x1c
int TimerCounter=0;
void interrupt ( *oldhandler)(__CPPARGS);
void interrupt newhandler(__CPPARGS){
TimerCounter++;
oldhandler();
}
void SetTimer(void interrupt (*IntProc)(__CPPARGS)){
oldhandler=getvect(TIMER);
disable();
setvect(TIMER,IntProc);
enable();
}
/*由于游戏的规则，消掉都有最小方块的一行*/
void delcol(int a){
int i,j;
for(i=a;i>1;i--)
for(j=1;j<15;j++){
minbox(j*MINBOXSIZE,i*MINBOXSIZE,BGCOLOR,BGCOLOR);
gril[i][j]=gril[i-1][j];
if(gril[i][j]==1)
minbox(j*MINBOXSIZE,i*MINBOXSIZE,minboxcolor,0);
}
}

/*消掉所有都有最小方块的行*/
void delete(){
int i,j,zero,delgx=0;
char *nm="00000";
for(i=1;i<21;i++){
zero=0;
for(j=1;j<15;j++)
if(gril[i][j]==0)
zero=1;
if(zero==0){
delcol(i);
delgx++;
}
}
num=num+delgx*delgx*10;
dj=num/10000;

sprintf(nm,"%d",num);
clscr(456,173,500,200,4);
txt(456,173,"Number:",1,15);
txt(456,193,nm,1,15);
}
/*时间中断结束*/
void KillTimer(){
disable();
setvect(TIMER,oldhandler);
enable();
}
/* 测试当前方块是否可以向下落*/
int downok(){
int i,j,k=1,a[4][4];
for(i=0;i<16;i++)
a[i/4][i%4]=boxstr[boxgs][boxfx][i];
for(i=0;i<4;i++)
for(j=0;j<4;j++)
if(a[i][j] && gril[col+i+1][row+j])
k=0;
return(k);
}
/* 测试当前方块是否可以向左行*/
int leftok(){
int i,j,k=1,a[4][4];
for(i=0;i<16;i++)
a[i/4][i%4]=boxstr[boxgs][boxfx][i];
for(i=0;i<4;i++)
for(j=0;j<4;j++)
if(a[i][j] && gril[col+i][row+j-1])
k=0;
return(k);
}
/* 测试当前方块是否可以向右行*/
int rightok(){
int i,j,k=1,a[4][4];
for(i=0;i<16;i++)
a[i/4][i%4]=boxstr[boxgs][boxfx][i];
for(i=0;i<4;i++)
for(j=0;j<4;j++)
if(a[i][j] && gril[col+i][row+j+1])
k=0;
return(k);
}
/* 测试当前方块是否可以变形*/
int upok(){
int i,j,k=1,a[4][4];
for(i=0;i<4;i++)
for(i=0;i<16;i++)
a[i/4][i%4]=boxstr[boxgs][boxfx+1][i];
for(i=3;i>=0;i--)
for(j=3;j>=0;j--)
if(a[i][j] && gril[col+i][row+j])
k=0;
return(k);
}
/*当前方块落下之后，给屏幕坐标作标记*/
void setgril(){
int i,j,a[4][4];
funbox(0,0,minboxcolor,0);
for(i=0;i<16;i++)
a[i/4][i%4]=boxstr[boxgs][boxfx][i];
for(i=0;i<4;i++)
for(j=0;j<4;j++)
if(a[i][j])
gril[col+i][row+j]=1;
col=1;row=7;
}
/*游戏结束*/
void gameover(){
int i,j;

for(i=20;i>0;i--)
for(j=1;j<15;j++)
minbox(j*MINBOXSIZE,i*MINBOXSIZE,2,0);
txt(103,203,"Game Over",3,10);
}
/*按键的设置*/
void call_key(int keyx){
switch(keyx){
case VK_DOWN: { /*下方向键，横坐标加一。*/
if(downok()){
col++;
funbox(0,0,minboxcolor,0);}
else{
funbox(0,0,minboxcolor,0);
setgril();
nextfunbox(NEXTCOL,NEXTROW,4,4);
boxrad();
nextfunbox(NEXTCOL,NEXTROW,nextminboxcolor,0);
delete();
}
break;
}
case VK_UP: { /*上方向键，方向形状旋转90度*/
if(upok())
boxfx++;
if(boxfx>3)
boxfx=0;
funbox(0,0,minboxcolor,0);
break;
}
case VK_LEFT:{ /*左方向键，纵坐标减一*/
if(leftok())
row--;
funbox(0,0,minboxcolor,0);
break;
}
case VK_RIGHT:{ /*右方向键，纵坐标加一*/
if(rightok())
row++;
funbox(0,0,minboxcolor,0);
break;
}
case VK_SPACE: /*空格键，直接落到最后可以落到的们置*/
while(downok())
col++;
funbox(0,0,minboxcolor,0);
setgril();
nextfunbox(NEXTCOL,NEXTROW,4,4);
boxrad();
nextfunbox(NEXTCOL,NEXTROW,nextminboxcolor,0);
delete();
break;
default:
{
txt(423,53,"worng key!",1,4);
txt(428,80,"Plese Enter Anly Key AG!",1,4);
getch();
clscr(420,50,622,97,BGCOLOR);
}
}
}

/*时间中断开始*/
void timezd(void){
int key;
SetTimer(newhandler);
boxrad();
nextfunbox(NEXTCOL,NEXTROW,nextminboxcolor,0);
for(;;){
if(bioskey(1)){
key=bioskey(0);
funbox(0,0,BGCOLOR,BGCOLOR);
if(key==VK_ESC)
break;
call_key(key);
}
if(TimerCounter>gamedj[dj]){
TimerCounter=0;
if(downok()){
funbox(0,0,BGCOLOR,BGCOLOR);
col++;
funbox(0,0,minboxcolor,0);
}
else {
if(col==1){
gameover();
getch();
break;
}
setgril();
delete();
funbox(0,0,minboxcolor,0);
col=1;row=7;
funbox(0,0,BGCOLOR,BGCOLOR);
nextfunbox(NEXTCOL,NEXTROW,4,4);
boxrad();
nextfunbox(NEXTCOL,NEXTROW,nextminboxcolor,0);
}
}
}
}

/*主程序开始*/
void main(void){
int i,j;
char *nm="00000";
init(VGA,VGAHI);
cls();
/*屏幕坐标初始化*/
for(i=0;i<=MAXCOL+1;i++)
for(j=0;j<=MAXROW+1;j++)
gril[i][j]=0;
for(i=0;i<=MAXCOL+1;i++) {
gril[i][0]=1;
gril[i][15]=1;
}
for(j=1;j<=MAXROW;j++){
gril[0][j]=1;
gril[21][j]=1;
}
clscr(0,0,640,480,15);
win(1,1,639,479,4,15);
win(SCCOL+MINBOXSIZE-2,SCROW+MINBOXSIZE-2,SCCOL+15*MINBOXSIZE+2,SCROW+21*MINBOXSIZE+2,BGCOLOR,0);
nextboxgs=random(8);
nextboxfx=random(4);
sprintf(nm,"%d",num);
txt(456,173,"Number:",1,15);
txt(456,193,nm,1,15);
txt(456,243,"Next Box:",1,15);
timezd();
KillTimer();
closegraph();
}

还有几个小病毒的源代码，可是不敢给你，怕犯罪
对了，文库里面有一些 函数大全之类的，可以下载看看，免费滴，嘿嘿

Answer 3

实际运用的 开发实例一般都是项目工程类的，代码都很庞大，而且有的涉及到一系列的编译环境。你要开发实例是想做什么用啊？

追问

说实话 自己学了这么久的c，还没有做出过一个属于自己的东西 很不甘心

追答

学了多久的c了？学过系统编程、网络编程、嵌入式之类的吗？

Answer 4

俄罗斯方块
推箱子
五子棋
简易计算器
电子时钟等

Answer 5

Visual C++里有一种叫MFC编程，单纯的C程序设计对软件开发当然没有太大的意义，但是基于MFC的程序设计可以把程序进行窗口化，不过这些是要基于C语言功底的，所以做程序员必须学好C语言。你在编译器中写的程序在没有安装编译器的电脑无法运行，你可以在运行前把它Release出来，这样就成为简单的软件了。还有比如在系统维护的时候我们需要对先存代码进行修改，多用到C语言，包括我们现在用的windows操作系统很大一部分都是C需要编写的。关于更多实例，建议楼主多看看书，这样你会有更深的印象。