急求一个C语言函数：判断一个字符串是否包含在另一个字符串当中

[changhairen]

RT，请说明函数参数和返回值意义。

[changhairen]

syslib.h 这个文件包不进去


能否给个函数 能比较像这种形式的字符串 "dwddrv\ACC\src\acc.c" "acc.c"


[Quote=引用 5 楼 wuyu637 的回复:]
// strstr.c

#include <syslib.h>
#include <string.h>

main()
{
char *s="Golden Global View";
char *l="lob";
char *p;

clrscr();

p=strstr(s,l);
if(p)
printf("%s",p);
else
printf("Not Found!");

getchar();
return 0;
}
[/Quote]

[ayw215]

[Quote=引用 6 楼 changhairen 的回复:]
syslib.h 这个文件包不进去


能否给个函数 能比较像这种形式的字符串 "dwddrv\ACC\src\acc.c" "acc.c"


引用 5 楼 wuyu637 的回复:
// strstr.c

#include <syslib.h>
#include <string.h>

main()
{
char *s="Golden Global View";
char *l="lob";
char *p;

clrscr();

p=strstr(s,l…
[/Quote]
那就不要嘛

[piginthetree]

c库好像有这样的函数啊

[WingForce]

Find a substring.

char *strstr( const char *string, const char *strCharSet );
wchar_t *wcsstr( const wchar_t *string, const wchar_t *strCharSet );
Parameters
string
Null-terminated string to search.
strCharSet
Null-terminated string to search for.
Libraries
All versions of the C run-time libraries.

Return Values
Each of these functions returns a pointer to the first occurrence of strCharSet in string, or NULL if strCharSet does not appear in string. If strCharSet points to a string of zero length, the function returns string.

Remarks
The strstr function returns a pointer to the first occurrence of strCharSet in string. The search does not include terminating null characters. wcsstr is the wide-character version of strstr. The arguments and return value of wcsstr are wide-character strings. These two functions behave identically otherwise.

Example
/* STRSTR.C */

#include <string.h>
#include <stdio.h>

char str[] =    "lazy";
char string[] = "The quick brown dog jumps over the lazy fox";
char fmt1[] =   "         1         2         3         4         5";
char fmt2[] =   "12345678901234567890123456789012345678901234567890";

void main( void )
{
   char *pdest;
   int  result;
   printf( "String to be searched:\n\t%s\n", string );
   printf( "\t%s\n\t%s\n\n", fmt1, fmt2 );
   pdest = strstr( string, str );
   result = pdest - string + 1;
   if( pdest != NULL )
      printf( "%s found at position %d\n\n", str, result );
   else
      printf( "%s not found\n", str );
}
Output
String to be searched:
   The quick brown dog jumps over the lazy fox
            1         2         3         4         5
   12345678901234567890123456789012345678901234567890

lazy found at position 36

[kkndciapp]

strstr

[changhairen]

[Quote=引用 2 楼 kkndciapp 的回复:]
strstr
[/Quote]

strstr("dwddrv\ACC\src\acc.c","acc.c") 不好使呀

[wuyu637]

// strstr.c

#include <syslib.h>
#include <string.h>

main()
{
char *s="Golden Global View";
char *l="lob";
char *p;

clrscr();

p=strstr(s,l);
if(p)
printf("%s",p);
else
printf("Not Found!");

getchar();
return 0;
}

[zzzlll1983]

有答案了已经

[bbspeterlee]

[Quote=引用楼主 changhairen 的帖子:]
RT，请说明函数参数和返回值意义。
[/Quote]

可以直接使用库函数strstr()，若不允许，请看：
http://www.peterlee.com.cn/blog.php?getArticleID=83&getYearMonth=200811
Implementation of ANSI C String Library Functions (ANSI C 字符串库函数的实现)

/* Referenced from Microsoft CRT source code, 
   efficient and easy to understand */
char* strstr(const char* cs, const char* ct)
{
    char* cp = (char*)cs;
    char* s1, * s2;

    if ( !*ct )
        return (char*)cs;

    while ( *cp )
    {
        s1 = cp;
        s2 = (char*)ct;

        while ( *s1 && *s2 && *s1==*s2) )
            ++s1, ++s2;

        if ( !*s2 )
            return cp;

        ++cp;
    }

    return NULL;
}

[zapdos]

KMP

[jch8528563jch]

syslib.h==stdlib.h