棋盘

#include <graphics.h>        
#include <conio.h>
#include <bits/stdc++.h>
using namespace std; 
int main(){
    srand(time(0));
    initgraph(640, 480);
    int x1=0,x2=640,y1=0,y2=0;
    for(int i=0;i<24;i++){
        line(x1,y1+=20,x2,y2+=20);
    }
    x1=0,x2=0,y1=0,y2=480;
    for(int i=0;i<32;i++){
        line(x1+=20,y1,x2+=20,y2);
    }
    int booL_x,booL_y,booL_x1,booL_y1;
    booL_x=rand()%32;
    booL_y=rand()%24;
    booL_x1=rand()%32;
    booL_y1=rand()%24;
    if(booL_x==0){
        booL_x=1;
    }
    if(booL_y==0){
        booL_y=1;
    }
    for(int i=0;i<5;i++){
        circle(booL_x*20, booL_y*20, 10);
        circle(booL_x1*20, booL_y1*20, 10);
    }
    _getch();                
    closegraph();            
    return 0;
}