如何在C程序中更改目录并从特定文件夹中检索文件 [英] How to change directory in C program and retrieve files from a particular folder

问题描述

我有一个包含文件名的字符串数组，并在循环中调用一个函数.

Hi,

I have an array of strings which contains the file names and I call a function in a loop.

char myFiles [20][50];

for(i=0;i<20;i++)
 myFunc( myFiles[i]);

我面临的挑战是，我必须将所有文件存储在目录中，例如"input"文件夹....然后调用我无法执行的

The challenge I am facing is that, I have to store all the files in a directory, say "input" folder.... and then call

myFunc( myFiles[i]);

.

我用了mkdir("input");创建目录并使用

which I am unable to do.

I used mkdir("input"); to create a directory and moves all my files into it also using

system("move *.txt input");

将所有文件都移动到该目录中
但是现在，如果我在函数中给出该路径，则必须对其进行硬编码，最终无法在循环中运行.
即

But now if I give that path in my function it has to be hardcoded which eventually cannot be run in a loop.
ie

for(i=0;i<20;i++)
myFunc("C:\\input\\myFiles[i]"); //which is not possible....

我正在使用Eclipse IDE.


预先感谢，
Faez

I am using eclipse IDE.


Thanks in advance,
Faez

推荐答案

您可以在循环中执行以下步骤

You can follow following steps in your loop

char FileName[1024] = {0};
for(i = 0; i<20;i++)
{
	sprintf(FileName,"C:\\input\\myFiles[%d]",i);
	myFunc(FileName);	
}

这样，您便可以动态创建文件名.

In this way you are able to create you file name dynamically.

我使用了以下

I used the following

system("copy /input/*.txt  ");
/* After manipulations with the file..*/

system("del *.txt);

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