第1个回答 2013-11-18
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# include<stdio.h>
# include<stdlib.h>
void main()
{
int i,j,a,b,n;
printf("please enter size");
scanf("%d",&n);
for(i=1;i<n;i++)
{
for(j=1;j<=n+i-1;j++)
if(j==n-i+1 ||j==n+i-1)
printf("*");
else
printf(" ");
printf("\n");
}
for(i=1;i<=2*n-1;i++)
printf("*");
printf("\n");
for(a=1;a<n;a++)
{
for(b=1;b<=2*n-a-1;b++)
if(b==n-(n-a-1)||b==2*n-a-1)
printf("*");
else
printf(" ");
printf("\n");}
}
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结果
please enter size 15
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*
* *
* *
* *
* *
* *
* *
* *
* *
* *
* *
* *
* *
* *
*****************************
* *
* *
* *
* *
* *
* *
* *
* *
* *
* *
* *
* *
* *
*
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