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：
#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
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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