C语言程序设计案例精编

C语言程序设计案例精编.txt“我羡慕内些老人羡慕他们手牵手一直走到最后。━交话费的时候，才发现自己的话那么值钱。案例一贪吃蛇游戏#defineN200#includegraphics.h#includestdlib.h#includedos.h#defineLEFT0x4b00#defineRIGHT0x4d00#defineDOWN0x5000#defineUP0x4800#defineESC0x011binti,key;intscore=0;/*得分*/intgamespeed=50000;/*游戏速度自己调整*/structFood{intx;/*食物的横坐标*/inty;/*食物的纵坐标*/intyes;/*判断是否要出现食物的变量*/}food;/*食物的结构体*/structSnake{intx[N];inty[N];intnode;/*蛇的节数*/intdirection;/*蛇移动方向*/intlife;/*蛇的生命,0活着,1死亡*/}snake;voidInit(void);/*图形驱动*/voidClose(void);/*图形结束*/voidDrawK(void);/*开始画面*/voidGameOver(void);/*结束游戏*/voidGamePlay(void);/*玩游戏具体过程*/voidPrScore(void);/*输出成绩*//*主函数*/voidmain(void){Init();/*图形驱动*/DrawK();/*开始画面*/GamePlay();/*玩游戏具体过程*/Close();/*图形结束*/}/*图形驱动*/voidInit(void){intgd=DETECT,gm;initgraph(&gd,&gm,c:\\tc);cleardevice();}/*开始画面，左上角坐标为（50，40），右下角坐标为（610，460）的围墙*/voidDrawK(void){/*setbkcolor(LIGHTGREEN);*/setcolor(11);setlinestyle(SOLID_LINE,0,THICK_WIDTH);/*设置线型*/for(i=50;i=600;i+=10)/*画围墙*/{rectangle(i,40,i+10,49);/*上边*/rectangle(i,451,i+10,460);/*下边*/}for(i=40;i=450;i+=10){rectangle(50,i,59,i+10);/*左边*/rectangle(601,i,610,i+10);/*右边*/}}/*玩游戏具体过程*/voidGamePlay(void){randomize();/*随机数发生器*/food.yes=1;/*1表示需要出现新食物,0表示已经存在食物*/snake.life=0;/*活着*/snake.direction=1;/*方向往右*/snake.x[0]=100;snake.y[0]=100;/*蛇头*/snake.x[1]=110;snake.y[1]=100;snake.node=2;/*节数*/PrScore();/*输出得分*/while(1)/*可以重复玩游戏,压ESC键结束*/{while(!kbhit())/*在没有按键的情况下,蛇自己移动身体*/{if(food.yes==1)/*需要出现新食物*/{food.x=rand()%400+60;food.y=rand()%350+60;while(food.x%10!=0)/*食物随机出现后必须让食物能够在整格内,这样才可以让蛇吃到*/food.x++;while(food.y%10!=0)food.y++;food.yes=0;/*画面上有食物了*/}if(food.yes==0)/*画面上有食物了就要显示*/{setcolor(GREEN);rectangle(food.x,food.y,food.x+10,food.y-10);}for(i=snake.node-1;i0;i--)/*蛇的每个环节往前移动,也就是贪吃蛇的关键算法*/{snake.x[i]=snake.x[i-1];snake.y[i]=snake.y[i-1];}/*1,2,3,4表示右,左,上,下四个方向,通过这个判断来移动蛇头*/switch(snake.direction){case1:snake.x[0]+=10;break;case2:snake.x[0]-=10;break;case3:snake.y[0]-=10;break;case4:snake.y[0]+=10;break;}for(i=3;isnake.node;i++)/*从蛇的第四节开始判断是否撞到自己了，因为蛇头为两节，第三节不可能拐过来*/{if(snake.x[i]==snake.x[0]&&snake.y[i]==snake.y[0]){GameOver();/*显示失败*/snake.life=1;break;}}if(snake.x[0]55||snake.x[0]595||snake.y[0]55||snake.y[0]455)/*蛇是否撞到墙壁*/{GameOver();/*本次游戏结束*/snake.life=1;/*蛇死*/}if(snake.life==1)/*以上两种判断以后,如果蛇死就跳出内循环，重新开始*/break;if(snake.x[0]==food.x&&snake.y[0]==food.y)/*吃到食物以后*/{setcolor(0);/*把画面上的食物东西去掉*/rectangle(food.x,food.y,food.x+10,food.y-10);snake.x[snake.node]=-20;snake.y[snake.node]=-20;/*新的一节先放在看不见的位置,下次循环就取前一节的位置*/snake.node++;/*蛇的身体长一节*/food.yes=1;/*画面上需要出现新的食物*/score+=10;PrScore();/*输出新得分*/}setcolor(4);/*画出蛇*/for(i=0;isnake.node;i++)rectangle(snake.x[i],snake.y[i],snake.x[i]+10,snake.y[i]-10);delay(gamespeed);setcolor(0);/*用黑色去除蛇的的最后一节*/rectangle(snake.x[snake.node-1],snake.y[snake.node-1],snake.x[snake.node-1]+10,snake.y[snake.node-1]-10);}/*endwhile（！kbhit）*/if(snake.life==1)/*如果蛇死就跳出循环*/break;key=bioskey(0);/*接收按键*/if(key==ESC)/*按ESC键退出*/break;elseif(key==UP&&snake.direction!=4)/*判断是否往相反的方向移动*/snake.direction=3;elseif(key==RIGHT&&snake.direction!=2)snake.direction=1;elseif(key==LEFT&&snake.direction!=1)snake.direction=2;elseif(key==DOWN&&snake.direction!=3)snake.direction=4;}/*endwhile(1)*/}/*游戏结束*/voidGameOver(void){cleardevice();PrScore();setcolor(RED);settextstyle(0,0,4);outtextxy(200,200,GAMEOVER);getch();}/*输出成绩*/voidPrScore(void){charstr[10];setfillstyle(SOLID_FILL,YELLOW);bar(50,15,220,35);setcolor(6);settextstyle(0,0,2);sprintf(str,score:%d,score);outtextxy(55,20,str);}/*图形结束*/voidClose(void){getch();closegraph();}案例二计算器#includedos.h/*DOS接口函数*/#includemath.h/*数学函数的定义*/#includeconio.h/*屏幕操作函数*/#includestdio.h/*I/O函数*/#includestdlib.h/*库函数*/#includestdarg.h/*变量长度参数表*/#includegraphics.h/*图形函数*/#includestring.h/*字符串函数*/#includectype.h/*字符操作函数*/#defineUP0x48/*光标上移键*/#defineDOWN0x50/*光标下移键*/#defineLEFT0x4b/*光标左移键*/#defineRIGHT0x4d/*光标右移键*/#defineENTER0x0d/*回车键*/void*rar;/*全局变量，保存光标图象*/structpalettetypepalette;/*使用调色板信息*/intGraphDriver;/*图形设备驱动*/intGraphMode;/*图形模式值*/intErrorCode;/*错误代码*/intMaxColors;/*可用颜色的最大数值*/intMaxX,MaxY;/*屏幕的最大分辨率*/doubleAspectRatio;/*屏幕的像素比*/voiddrawboder(void);/*画边框函数*/voidinitialize(void);/*初始化函数*/voidcomputer(void);/*计算器计算函数*/voidchangetextstyle(intfont,intdirection,intcharsize);/*改变文本样式函数*/voidmwindow(char*header);/*窗口函数*/intspecialkey(void);/*获取特殊键函数*/intarrow();/*设置箭头光标函数*//*主函数*/intmain(){initialize();/*设置系统进入图形模式*/computer();/*运行计算器*/closegraph();/*系统关闭图形模式返回文本模式*/return(0);/*结束程序*/}/*设置系统进入图形模式*/voidinitialize(void){intxasp,yasp;/*用于读x和y方向纵横比*/GraphDriver=DETECT;/*自动检测显示器*/initgraph(&GraphDriver,&GraphMode,);/*初始化图形系统*/ErrorCode=graphresult();/*读初始化结果*/if(ErrorCode!=grOk)/*如果初始化时出现错误*/{printf(GraphicsSystemError:%s\n,grapherrormsg(ErrorCode));/*显示错误代码*/exit(1);/*退出*/}getpalette(&palette);/*读面板信息*/MaxColors=getmaxcolor()+1;/*读取颜色的最大值*/MaxX=getmaxx();/*读屏幕尺寸*/MaxY=getmaxy();/*读屏幕尺寸*/getaspectratio(&xasp,&yasp);/*拷贝纵横比到变量中*/AspectRatio=(double)xasp/(double)yasp;/*计算纵横比值*/}/*计算器函数*/voidcomputer(void){structviewporttypevp;/*定义视口类型变量*/intcolor,he