1.1-08:字符三角形

#include<stdio.h> 
int main()
{
    char i;
    scanf("%c",&i);
    printf("  %c\n",i);
    printf(" %c%c%c\n",i,i,i);
    printf("%c%c%c%c%c\n",i,i,i,i,i);
    return 0;
}