StrStrI 与 strstr

最新推荐文章于 2019-09-11 18:00:25 发布

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本文介绍了StrStrI()和strstr()两个字符串搜索函数的区别：StrStrI()不区分大小写，而strstr()区分大小写。StrStrI()函数接受两个参数，pszFirst为被搜索的空终止字符串指针，pszSrch为要搜索的子字符串指针。如果找到匹配的子字符串，则返回其地址；否则返回NULL。该函数自Windows 2000 Professional起被支持。

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StrStrI ()不区分大小写

strstr ()区分大小写 

Syntax
C++
PTSTR StrStrI(
  _In_  PTSTR pszFirst,
  _In_  PCTSTR pszSrch
);

Parameters
pszFirst [in]Type: PTSTR
A pointer to the null-terminated string being searched.
pszSrch [in]Type: PCTSTR
A pointer to the substring to search for.
Return value
Type: PTSTR
Returns the address of the first occurrence of the matching substring if successful, or NULL otherwise.
Requirements
Minimum
 supported client Windows 2000 Professional, Windows XP [desktop apps only]
Minimum
 supported server Windows 2000 Server [desktop apps only]
Header Shlwapi.h
Library Shlwapi.lib
DLL Shlwapi.dll
 (version 4.71 or later)
Unicode
 and ANSI names StrStrIW (Unicode) and StrStrIA (ANSI)

Minimum supported client	Windows 2000 Professional, Windows XP [desktop apps only]
Minimum supported server	Windows 2000 Server [desktop apps only]
Header	Shlwapi.h
Library	Shlwapi.lib
DLL	Shlwapi.dll (version 4.71 or later)
Unicode and ANSI names	StrStrIW (Unicode) and StrStrIA (ANSI)