打印倒三角字母图案的C语言程序

编写一个C语言程序，使用for循环打印倒三角字母图案。

#include <stdio.h

int main() { int rows;

printf("Enter Inverted Triangle of Alphabets Rows = ");
scanf("%d", &rows);

printf("Printing Inverted Triangle Alphabets Pattern\\n");
int alphabet = 65;

for (int i = 0; i <= rows - 1; i++)
{
	for (int j = 0; j <= i; j++)
	{
		printf(" ");
	}
	for (int k = 0; k <= rows - i - 1; k++)
	{
		printf("%c ", alphabet + k);
	}
	printf("\\n");
}

这个C语言例子使用while循环来打印倒三角的字母图案。

#include <stdio.h>.

int main() { int rows, i, j, k, alphabet;

printf("Enter Inverted Triangle of Alphabets Rows = ");
scanf("%d", &rows);

printf("Printing Inverted Triangle Alphabets Pattern\\n");
alphabet = 65;

i = 0;

while (i <= rows - 1)
{

	j = 0;
	while (j <= i)
	{
		printf(" ");
		j++;
	}

	k = 0;
	while (k <= rows - i - 1)
	{
		printf("%c ", alphabet + k);
		k++;
	}
	printf("\\n");
	i++;
}

Enter Inverted Triangle of Alphabets Rows = 13
Printing Inverted Triangle Alphabets Pattern
 A B C D E F G H I J K L M 
  A B C D E F G H I J K L 
   A B C D E F G H I J K 
    A B C D E F G H I J 
     A B C D E F G H I 
      A B C D E F G H 
       A B C D E F G 
        A B C D E F 
         A B C D E 
          A B C D 
           A B C 
            A B 
             A 

在这个C模式的例子中，我们用do while循环来显示字母的倒三角。

#include <stdio.h>.

int main() { int rows, i, j, k, alphabet;

printf("Enter Inverted Triangle of Alphabets Rows = ");
scanf("%d", &rows);

printf("Printing Inverted Triangle Alphabets Pattern\\n");
alphabet = 65;

i = 0;

do
{
	j = 0;
	do
	{
		printf(" ");

	} while (j++ <= i);

	k = 0;
	do
	{
		printf("%c ", alphabet + k);

	} while (++k <= rows - i - 1);

	printf("\\n");

} while (++i <= rows - 1);

Enter Inverted Triangle of Alphabets Rows = 16
Printing Inverted Triangle Alphabets Pattern
  A B C D E F G H I J K L M N O P 
   A B C D E F G H I J K L M N O 
    A B C D E F G H I J K L M N 
     A B C D E F G H I J K L M 
      A B C D E F G H I J K L 
       A B C D E F G H I J K 
        A B C D E F G H I J 
         A B C D E F G H I 
          A B C D E F G H 
           A B C D E F G 
            A B C D E F 
             A B C D E 
              A B C D 
               A B C 
                A B 
                 A