编程打印如下形式的杨辉三角形.

1 1 1 1 2 1 1 3 3 1 1 4 6 4 1 1 5 10 10 5 1

#include <stdio.h>
main()
{
int i,j,n=0,a[17][17]={0};
while(n<1 || n>16)
{ printf("请输入杨辉三角形的行数:");
scanf("%d",&n); }
for(i=0;i<n;i++)
a[i][0]=1;
for(i=1;i<n;i++)
for(j=1;j<=i;j++)
a[i][j]=a[i-1][j-1]+a[i-1][j];
for(i=0;i<n;i++)
{ for(j=0;j<=i;j++)
printf("%5d",a[i][j]);
printf("\n"); } }
试试看

#include<stdio.h> double jc(int n) { double ret= 1; while(n) ret*= n--; return ret; } double jc(int n, int m) { double ret= 1; while(m--) ret*= n--; return ret; } void yanghuisanjiao(int n) { int i, j, m, k; for(i= 0; i <= n; i++) { for(k=0; k < n-i; k++) printf(" "); for(j= 0; j <= i; j++) { m= jc(i, j)/jc(j); printf("%6d", m); } printf("\n"); } } void main() { yanghuisanjiao(12); printf("\n"); }

private sub command1_click() dim a as integer a = 5'或6 text1.text = getdata(a) end sub private function getdata(index as integer) as integer dim m, n as integer m = 1 n = 1 if index < 2 then getdata = 1 exit function end if for i = 2 to index temp = n n = m n m = temp next getdata = n end function