main()

main()

{int i,j;

int a[10][10];

printf("\n");

for(i=0;i<10;i++)

　 {a[i][0]=1;

　 a[i][i]=1;}

for(i=2;i<10;i++)

　 for(j=1;j<i;j++)

　 a[i][j]=a[i-1][j-1]+a[i-1][j];

for(i=0;i<10;i++)

　 {for(j=0;j<=i;j++)

　 printf("%5d",a[i][j]);

　 printf("\n");

　 }

}

-----------------------------------------------------------------------------
【程序62】

题目：学习putpixel画点。

1.程序分析：　　　　　　　　　　　　

2.程序源代码：

#include "stdio.h"

#include "graphics.h"

main()

{

int i,j,driver=VGA,mode=VGAHI;

initgraph(&driver,&mode,"");

setbkcolor(YELLOW);

for(i=50;i<=230;i+=20)

　 for(j=50;j<=230;j++)

　 putpixel(i,j,1);

for(j=50;j<=230;j+=20)

　 for(i=50;i<=230;i++)

　 putpixel(i,j,1);

}
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