µÚÁùÕ´𰸠c primer plus
6.1 ±àдһ¸ö³ÌÐò,´´½¨Ò»¸ö¾ßÓÐ26¸öÔªËØµÄÊý×é,²¢ÔÚÆäÖд洢26¸öСд×Öĸ,²¢ÈøóÌÐòÏÔʾ¸ÃÊý×éµÄÄÚÈÝ.
#include <stdio.h>
int main(void)
{
char a[26] = {'a', 'b', 'c', 'd', 'e', 'f',
'g', 'h', 'i', 'j', 'k', 'l',
'm', 'n', 'o', 'p', 'q', 'r',
's', 't', 'u', 'v', 'w', 'x', 'y', 'z' };
int i;
for(i = 0; i < 26; i++)
printf("%c", a[i]);
return 0;
}
==============================================================
6.2 ʹÓÃǶÌ×Ñ»·²úÉúÏÂÁÐͼ°¸:
$
$$
$$$
$$$$
$$$$$
#include <stdio.h>
int main(void)
{
int i , j, k;
for(i = 0; i < 5; i++)
{
k = i + 1;
for(j = 0; j< k; j++)
printf("$");
printf("\n");
}
return 0;
}
==============================================================
6.3 ʹÓÃǶÌ×Ñ»·²úÉúÏÂÁÐͼ°¸:
F
FE
FED
FEDC
FEDCB
FEDCBA
#include <stdio.h>
int main(void)
{
char fedcba[6] = {"FEDCBA"};
int i, j, k;
for(i = 0; i < 6; i++)
{
k = i + 1;
for(j = 0; j < k; j++)
printf("%c", fedcba[j]);
printf("\n");
}
return 0;
}
==============================================================
6.4 ÈóÌÐòÒªÇóÓû§ÊäÈëÒ»¸ö´óд×Öĸ,ʹÓÃǶÌ×Ñ»·²úÉúÏñÏÂÃæÕâÑùµÄ½ð×ÖËþͼ°¸:
A
ABA
ABCBA
ABCDCBA
ABCDEDCBA
#include <stdio.h>
int main(void)
{
int len;
char flag;
int i,n,p,q;
printf("Please input trigger character:");
scanf("%c", &flag);
printf("Please input length:");
scanf("%d", &len);
for(i = 0; i < le
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