1.简单点的：
这游戏老外管它叫 bulls and cows（bulls 是 a，cows 是 b）。用 c++ 可以这样写：
include
include
include
include
include
include
using namespace std;returns bulls and cows scored by guess on secretnumber.
string bullsandcows(unsigned guess,unsigned secretnumber){
stringstream ssguess,
sssecretnumber;ssguess;sssecretnumber;string strguess(ssguess.str()),
strsecretnumber(sssecretnumber.str());unsigned bulls=0,
cows=0,
i;for(i=0;i();i)/count bulls
if(strsecretnumber[i]=strguess[i]){
bulls;strguess.erase(i,1);erase to ease
strsecretnumber.erase(i,1);counting of cows
i;}
for(i=0;i();i)/count cows
if(strguess.find(strsecretnumber[i])!string:npos){
cows;strguess.erase(strguess.find(strsecretnumber[i]),1);strsecretnumber.erase(i,1);i;}
return string(1,'0'+bulls)+string(1,'0'+cows);}
returns true iff n ** positive,4-digit,contains no 0 or repeated digit.
bool **validinput(int n){
stringstream ss;ss;string s=ss.str();return 1000
s.find('0')=string:npos&
set(s.begin(),s.end()).size()=4;}
void main(){
select a valid random secret number
srand(time(**));unsigned secretnumber=0;while!**validinput(secretnumber))
secretnumber=rand();for(unsigned guess=0,guesscount=1;guess!secretnumber;guesscount){
cout(#"):;string input;cin>>input;if(input.length()!4|
(stringstream(input)>>guess)|
**validinput(guess)){
cout
0 or repeated digit.\n\n;guesscount;continue;}
string bullscows=bullsandcows(guess,secretnumber);cout[0],b:"[1];}
cout!\n\n;}
复杂点的，五子棋：
include"stdafx.h
include
include
办跑计?hinstance hinst;hbitmap chess[2];hdc hdc,mdc,bufdc;hwnd hwnd;dword tpre,tnow;int board[10][10];bool ptab[10][10][192];bool ctab[10][10][192];int win[2][192];int num[2];bool turn,over;int winner;ㄧα?** myreg**terclass(hinstance hinstance);bool initinstance(hinstance,int);lresult callback wndproc(hwnd,uint,wparam,lparam);void mypaint(hdc hdc);void initgame();void comturn();祘α*
int apientry winmain(hinstance hinstance,
hinstance hprevinstance,
lpstr lpcmdline,
int ncmdshow)
{
msg msg;myreg**terclass(hinstance);磅?﹍てㄧα
if!initinstance(hinstance,ncmdshow))
{
return false;}
笴栏癹伴
while(msg.**!wm_quit)
{
if(peek**(&msg,**,0,0,pm_remove))
{
translate**(&msg);d**patch**(&msg);}
else
{
tnow=gettickcount();if(tnow-tpre>=100)
mypaint(hdc);}
}
return msg.wparam;}
竡の爹?跌怠摸?ㄧα*
** myreg**terclass(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=**;wcex.hcursor=**;wcex.hcursor=loadcursor(**,idc_arrow);wcex.hbrbackground=(hbrush)(color_window+1);wcex.lpszmenuname=**;wcex.lpszclassname="canvas;wcex.hiconsm=**;return reg**terclassex(&wcex);}
﹍ㄧα*
囱弦?钡?の㊣?initgame()ㄧα秨﹍囱ы
bool initinstance(hinstance hinstance,int ncmdshow)
{
hbitmap tile,bmp;int rownum,colnum;int i,x,y;hinst=hinstance;hwnd=createwindow("canvas","酶瓜跌怠",ws_overlappedwindow,
cw_usedefault,0,cw_usedefault,0,**,**,hinstance,**);if!hwnd)
{
return false;}
movewindow(hwnd,10,10,480,520,true);showwindow(hwnd,ncmdshow);updatewindow(hwnd);hdc=getdc(hwnd);mdc=createcompatibledc(hdc);bufdc=createcompatibledc(hdc);bmp=createcompatiblebitmap(hdc,450,450);selectobject(mdc,bmp);tile=(hbitmap)loadimage(**,"tile.bmp",image_bitmap,45,45,lr_loadfromfile);chess[0]=(hbitmap)loadimage(**,"chess0.bmp",image_bitmap,38,38,lr_loadfromfile);chess[1]=(hbitmap)loadimage(**,"chess1.bmp",image_bitmap,38,38,lr_loadfromfile);for(i=0;i;i+)
{
rownum=i/10;colnum=i%10;x=colnum*45;y=rownum*45;selectobject(bufdc,tile);bitblt(mdc,x,y,45,45,bufdc,0,0,srccopy);}
initgame();mypaint(hdc);return true;}
囱ы?﹍ㄧα*
1.砞）囱弦?﹍?篈の莉秤?ず甧
2.∕）?よ
void initgame()
{
int i,j,k;int count=0;over=false;num[0]=num[1]=0;砞）?产籔筿福?莉秤舱?い?囱?计
for(i=0;i;i+)
{
win[0][i]=0;win[1][i]=0;}
﹍て囱弦?篈
for(i=0;i;i+)
for(j=0;j;j+)
board[i][j]=2;砞）?キよ?莉秤舱?for(i=0;i;i+)
for(j=0;j;j+)
{
for(k=0;k;k+)
{
ptab[i][j+k][count]=true;ctab[i][j+k][count]=true;}
count+;}
砞）?よ?莉秤舱?for(i=0;i;i+)
for(j=0;j;j+)
{
for(k=0;k;k+)
{
ptab[j+k][i][count]=true;ctab[j+k][i][count]=true;}
count+;}
砞）タ癸à絬よ?莉秤舱?for(i=0;i;i+)
for(j=0;j;j+)
{
for(k=0;k;k+)
{
ptab[j+k][i+k][count]=true;ctab[j+k][i+k][count]=true;}
count+;}
砞）は癸à絬よ?莉秤舱?for(i=0;i;i+)
for(j=9;j>=4;j-)
{
for(k=0;k;k+)
{
ptab[j-k][i+k][count]=true;ctab[j-k][i+k][count]=true;}
count+;}
睹计∕）パê?よ?囱?srand(gettickcount());if(rand()%2=0)
turn=true;else
turn=false;}
筿福?ㄧα*
1.璸衡莉秤だ计
2.匡拒程ㄎ?竚籼?笆?void comturn()
{
int grades[2][10][10];int m,n,i,max=0;int u,v;for(m=0;m;m+)
for(n=0;n;n+)
{
grades[0][m][n]=0;grades[1][m][n]=0;if(board[m][n]=2)
{
for(i=0;i;i+)
{
璸衡?产?囱?莉秤だ计
if(ptab[m][n][i]&win[0][i]!7)
{
switch(win[0][i])
{
case 0:
grades[0][m][n]+1;break;case 1:
grades[0][m][n]+200;break;case 2:
grades[0][m][n]+400;break;case 3:
grades[0][m][n]+2000;break;case 4:
grades[0][m][n]+10000;break;}
}
璸衡筿福?囱?莉秤だ计
if(ctab[m][n][i]&win[1][i]!7)
{
switch(win[1][i])
{
case 0:
grades[1][m][n]+1;break;case 1:
grades[1][m][n]+220;break;case 2:
grades[1][m][n]+420;break;case 3:
grades[1][m][n]+2100;break;case 4:
grades[1][m][n]+20000;break;}
}
}
if(max=0)
{
u=m;v=n;}
if(grades[0][m][n]>max)
{
max=grades[0][m][n];u=m;v=n;}
else if(grades[0][m][n]=max)
{
if(grades[1][m][n]>grades[1][u][v])
{
u=m;v=n;}
}
if(grades[1][m][n]>max)
{
max=...