PathFileExists用法－－使用#include

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发布于 2022-09-14 10:18:56

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BOOL PathFileExists(LPCTSTR pszPath);

Determines if a file exists.

—经检测，该函数可以检测文件或目录是否存在！

Remarks

This function tests the validity of the file and path. It works only on the local file system or on a remote drive that has been mounted to a drive letter. It will return FALSE for remote file paths that begin with the UNC names //server or //server/share. It will also return FALSE if a mounted remote drive is out of service.

为了使用PathFileExists()，必须包含头文件”shlwapi.h”，范例代码如下：

view source print ?

#include <windows.h>

#include <iostream.h>

#include <shlwapi.h>

void main( void )

{

// Valid file path name (file is there).

char buffer_1[] = "C://TEST//file.txt";

char *lpStr1;

lpStr1 = buffer_1;

// Invalid file path name (file is not there).

char buffer_2[] = "C://TEST//file.doc";

char *lpStr2;

lpStr2 = buffer_2;

// Search for the presence of a file with a true result.

int retval = PathFileExists(lpStr1);

if(retval == 1)

{

cout << "Search for the file path of : " << lpStr1 << endl;

cout << "The file requested /"" << lpStr1 << "/" is a valid file" << endl;

cout << "The return from function is: " << retval << endl;

}

else

{

cout << "The file requested " << lpStr1 << " is not a valid file" << endl;

cout << "The return from function is: " << retval << endl;

}

// Search for the presence of a file with a false result.

retval = PathFileExists(lpStr2);

if(retval == 1)

{

cout << "/nThe file requested " << lpStr2 << " is a valid file" << endl;

cout << "Search for the file path of: " << lpStr2 << endl;

cout << "The return from function is: " << retval << endl;

}

else

{

cout << "/nThe file requested /"" << lpStr2 << "/" is not a valid file" << endl;

cout << "The return from function is: " << retval << endl;

}

}

编译后，却发现一个错误：error LNK2001: unresolved external symbol __imp__PathFileExistsA@4

网上搜索了下，发现是因为没有添加相应的lib。添加lib的方法网上有不少，这里使用下面的方法：

这样，就可以通过编译了！

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原始发表：2022年7月1，如有侵权请联系 cloudcommunity@tencent.com 删除

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