打印右箭头字母图案的C语言程序

编写一个C语言程序，使用for循环打印右箭头字母图案。

#include <stdio.h>

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

printf("Enter Right Arrow Pattern of Alphabets Rows = ");
scanf("%d", &rows);

printf("Printing Right Arrow Alphabets Pattern\\n");
alphabet = 65;

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

for (i = rows - 2; i >= 0; i--)
{
	for (j = 0; j < i; j++)
	{
		printf(" ");
	}
	for (k = i; k <= rows - 1; k++)
	{
		printf("%c", alphabet + k);
	}
	printf("\\n");
}

这个C语言例子使用while循环打印字母的右箭头图案。

#include <stdio.h>.

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

printf("Enter Right Arrow Pattern of Alphabets Rows = ");
scanf("%d", &rows);

printf("Printing Right Arrow Alphabets Pattern\\n");

alphabet = 65;
i = 0;

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

i = rows - 2;
while (i >= 0)
{
	j = 0;
	while (j < i)
	{
		printf(" ");
		j++;
	}
	k = i;
	while (k <= rows - 1)
	{
		printf("%c", alphabet + k);
		k++;
	}
	printf("\\n");
	i--;
}

Enter Right Arrow Pattern of Alphabets Rows = 13
Printing Right Arrow Alphabets Pattern
ABCDEFGHIJKLM
 BCDEFGHIJKLM
  CDEFGHIJKLM
   DEFGHIJKLM
    EFGHIJKLM
     FGHIJKLM
      GHIJKLM
       HIJKLM
        IJKLM
         JKLM
          KLM
           LM
            M
           LM
          KLM
         JKLM
        IJKLM
       HIJKLM
      GHIJKLM
     FGHIJKLM
    EFGHIJKLM
   DEFGHIJKLM
  CDEFGHIJKLM
 BCDEFGHIJKLM
ABCDEFGHIJKLM