1. 原代码如下

#include<stdio.h>
int main(){int row, col, i;char c = 32;for(row = 1; row < 6; row++){for(i = 5-row; i > 0; i--)printf("%c", c);for(col = 1; col <= 2*row-1; col++)printf("*");printf("\n");}return 0;
}

2. 运行结果如下图