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update 27.c #19

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update 27.c #19

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15 changes: 8 additions & 7 deletions 经典示例/027.字符替换/27.c
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Original file line number Diff line number Diff line change
@@ -1,21 +1,22 @@
#include <stdio.h>
#include <stdlib.h>
#define MAX 50
/* ����repʵ�ֶ�s�г��ֵ�s1�е��ַ��滻Ϊs2����Ӧ���ַ� */
/* 函数rep实现对s中出现的s1中的字符替换为s2中相应的字符 */
rep(char *s,char *s1,char *s2)
{
char *p;

for(;*s;s++)/*˳������ַ���s�е�ÿ���ַ�*/
for(;*s;s++)/*顺序访问字符串s中的每个字符*/
{
for(p=s1;*p&&*p!=*s;p++);/*��鵱ǰ�ַ��Ƿ����ַ���s1�г���*/
if(*p)*s=*(p-s1+s2);/*��ǰ�ַ����ַ���s1�г��֣����ַ���s2�еĶ�Ӧ�ַ�����s�е��ַ�*/
for(p=s1;*p&&*p!=*s;p++);/*检查当前字符是否在字符串s1中出现*/
if(*p)*s=*(p-s1+s2);/*当前字符在字符串s1中出现，用字符串s2中的对应字符代替s中的字符*/
}
}
main( )/*ʾ�����*/
main( )/*示意程序*/
{
char s[MAX];/*="ABCABC";*/
char s1[MAX],s2[MAX];
clrscr();
system("clear") ;
puts("Please input the string for s:");
scanf("%s",s);
puts("Please input the string for s1:");
Expand All @@ -29,4 +30,4 @@ rep(char *s,char *s1,char *s2)
puts("\n Press any key to quit...");
getch();
}