標(biāo)題: strpbrk函數(shù)實(shí)現(xiàn)及簡(jiǎn)單使用 [打印本頁]

---

作者: xiaojuan    時(shí)間: 2014-9-24 22:24
標(biāo)題: strpbrk函數(shù)實(shí)現(xiàn)及簡(jiǎn)單使用
//:Vc++6.0  String  strpbrk函數(shù)
//功能：順序在字符串str1中搜尋與str2中字符的第一個(gè)相同字符
//參數(shù)：str1 字符串1   str2 字符串2
//返回值：返回找到字符串的字符
#include<stdio.h>

const char *strpbrk(const char *str1, const char *str2);

int main()
{

char str[] = "This is a sample string";
char key[] = "aeiou";
const char * pch;
printf ("Vowels in '%s': ",str);
pch = strpbrk(str, key);

while (pch != NULL)
{
printf ("%c " , *pch);
pch = strpbrk(pch+1,key);
}
printf ("\n");

return 0;
}

const char *strpbrk(const char *str1, const char *str2)
{
if (str1 == NULL || str2 == NULL)
{
perror("str1 or str2");
return NULL;
}
const char *temp1 = str1;
const char *temp2 = str2;

while (*temp1 != '\0')
{
temp2 = str2; //將str2 指針從新指向在字符串的首地址
while (*temp2 != '\0')
{
if (*temp2 == *temp1)
return temp1;
else
temp2++;
}
temp1++;
}
return NULL;
}

//在vc++6.0中的運(yùn)行結(jié)果為：Vowels in 'This is a sample string': i i a a e i
//注：和 strcspn函數(shù) 相似//:~

---

歡迎光臨 (http://www.torrancerestoration.com/bbs/)

Powered by Discuz! X3.1