/*使用嵌套循环,按照下面的格式打印字母:
A
BC
DEF
GHIJ
KLMNO
PQRSTU
*/
#include<stdio.h>
int main()
{
int i;
int k = 'A';
for (i = 1; i <= 6
/*使用嵌套循环,按照下面的格式打印字母:
A
BC
DEF
GHIJ
KLMNO
PQRSTU
*/
#include<stdio.h>
int main()
{
int i;
int k = 'A';
for (i = 1; i <= 6