打印左箭头字母图案的C语言程序

编写一个C语言程序，使用for循环打印左箭头字母图案。

#include <stdio.h

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


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

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

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

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

这个C程序使用while循环打印字母表的模式的左箭头。

#include <stdio.h>.

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


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

printf("Printing Left Arrow Alphabets Pattern\\n");
alphabet = 65;
i = rows - 1;

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

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

Enter Left Arrow Pattern of Alphabets Rows = 10
Printing Left Arrow Alphabets Pattern
J I H G F E D C B A 
I H G F E D C B A 
H G F E D C B A 
G F E D C B A 
F E D C B A 
E D C B A 
D C B A 
C B A 
B A 
A 
A 
B A 
C B A 
D C B A 
E D C B A 
F E D C B A 
G F E D C B A 
H G F E D C B A 
I H G F E D C B A 
J I H G F E D C B A 

这个C模式的例子使用do while循环来打印字母的左箭头。

#include <stdio.h>

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

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

printf("Printing Left Arrow Alphabets Pattern\\n");
alphabet = 65;
i = rows - 1;

do
{
	j = i;
	do
	{
		printf("%c ", alphabet + j);

	} while (--j >= 0);
	printf("\\n");

} while (--i >= 0);

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

	} while (--j >= 0);
	printf("\\n");

} while (++i < rows);

Enter Left Arrow Pattern of Alphabets Rows = 12
Printing Left Arrow Alphabets Pattern
L K J I H G F E D C B A 
K J I H G F E D C B A 
J I H G F E D C B A 
I H G F E D C B A 
H G F E D C B A 
G F E D C B A 
F E D C B A 
E D C B A 
D C B A 
C B A 
B A 
A 
A 
B A 
C B A 
D C B A 
E D C B A 
F E D C B A 
G F E D C B A 
H G F E D C B A 
I H G F E D C B A 
J I H G F E D C B A 
K J I H G F E D C B A 
L K J I H G F E D C B A