如何在Qt中创建一个新文件

问题描述

我是一个Qt初学者，只是陷入了这个问题。我正在寻找一个文件SomePath / NewDirectoryA / NewFile.kml（NewFile.kml将是唯一的文件在NewDirectoryA，有这个目录只是为了维护项目中的语义）。

但问题是我必须创建文件的目录本身。我用QFile与文件名称SomePath / NewDirectoryA / NewFile.kml尝试，但它没有奏效。请给我一个方法，我可以在一个新的目录（NewDirectorA）在给定的位置（SomePath）创建一个新的文件（NewFile.kml）。

解决方案

Qt的文件创建警告

$ b

和

I am a Qt beginner and just got stuck with the problem. I am looking for a file SomePath/NewDirectoryA/NewFile.kml ( NewFile.kml will be the only file in NewDirectoryA, having this directory just to maintain semantics in the project ).

If SomePath/NewDirectoryA/NewFile.kml exists then I will use it in my code and If it doesn't exist then I have to create it. If this File doesn't exist then this directory also doesn't exist in SomePath. So If only I have to create a file I can use QFile and open it in ReadWrite or WriteOnly mode.

But the problem is I have to create the file with the directory itself. I tried with QFile with file name SomePath/NewDirectoryA/NewFile.kml but it didn't worked. Please suggest me a way in which I can create a new file( NewFile.kml ) in a new directory( NewDirectorA ) at a given location( SomePath ).

解决方案

Qt's caveat for file creation

Directories are created with

and

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