查找以特定字符串开头的文件 [英] find file starting with a certain string

问题描述

我想知道如何检查文件是否存在:

例如，我有很多文件:

Boba.txt
James.txt
Jamy.txt
Boby.txt 

如何检查以Bob开头的文件是否存在?

解决方案

注意，我假设您使用的是Windows系统，并且文件位于同一目录中.

您可以使用 FindFirstFile 和 FindNextFile 用于遍历目录的函数.前缀可以包含在搜索词中.

示例

std::string strSearch = "C:\\Some Directory\\Bob*";
WIN32_FIND_DATAA ffd;
HANDLE hFind = FindFirstFileA(strSearch .c_str(), &ffd);

do
{
    std::string strFile = ffd.cFileName;
}
while (FindNextFileA(hFind, &ffd) != 0);

正确的错误检查以及如何处理目录留给读者练习.

I wonder how to check If a file exist or not :

For Example I have many files :

Boba.txt
James.txt
Jamy.txt
Boby.txt 

How can I check if the file starting with Bob exists ?

解决方案

Note, I'm assuming that you're on a Windows system and that the files are in the same directory.

You can use the FindFirstFile and FindNextFile functions to iterate through a directory. The prefix can be included in search term.

Example

std::string strSearch = "C:\\Some Directory\\Bob*";
WIN32_FIND_DATAA ffd;
HANDLE hFind = FindFirstFileA(strSearch .c_str(), &ffd);

do
{
    std::string strFile = ffd.cFileName;
}
while (FindNextFileA(hFind, &ffd) != 0);

Proper error checking and how to deal with directories is left as an exercise for the reader.

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