How to use copyfile function correctly?

2015 8 27
1 个回答
回答已采纳
更新时间：2015 8 29
8 次查看（30 天）

0 个投票

I have a text file which was created in the "Current Folder" window. Now, I want to re-save this file in another direction (or copy the file as I did). This is my code:
[FileName,PathDir] = uiputfile('log_MCES.txt','Save Calculation Notes');
if isequal(FileName,0) || isequal(PathDir,0)
else
copyfile(FileName, PathDir)
end
The original file it contains the following:
Note 1: [Graphical Representation] A cost node is invisible for an energy node.
=====================================
Note 2: An Optimum Solution has been Achieved.
=====================================
But the copied one is:
Note 1: [Graphical Representation] A cost node is invisible for an energy node.=====================================Note 2: An Optimum Solution has been Achieved.=====================================
As shown, the order of the texts has been changed and I don't know why?

请先登录，再回答此问题。

 采纳的回答

Steven Lord
Steven Lord 2015-8-27

1 个投票

The order of the text hasn't changed. It's being displayed with fewer newlines, but I suspect that's because you've opened the file in Microsoft Notepad. What does the file look like if you open it in the MATLAB Editor?

5 个评论
显示 3更早的评论 隐藏 3更早的评论

Walter Roberson
Walter Roberson 2015-8-28
It would be expected that the copy would end up identical to the original in content (but not necessarily in metadata such as ownership)
Haitham
Haitham 2015-8-28
编辑：Haitham 2015-8-28
Yes exactly Steven, when I opened both files with Microsoft Notepad they being displayed with fewer newlines but with MATLAB Editor both of them are OK (as displayed in the Edit Text box). Is there a way to make the file displayed as it is in the MATLAB Editor?
Walter Roberson
Walter Roberson 2015-8-28
Unfortunately copyfile is built-in so I cannot see what it is doing. The behavior you describe is what might be expected if a program opened the source file in text mode and read a line at a time and write the line to a destination opened in binary mode. That implementation is not plausible, though, as it would be much more likely to call upon operating system facilities to copy the files.
Haitham
Haitham 2015-8-29
Thank you Walter.
Walter Roberson
Walter Roberson 2015-8-29
Haitham, is it possible that you are using MATLAB R14SP2 or earlier?

请先登录，再进行评论。

更多回答（0 个）

类别

在 帮助中心 和 File Exchange 中查找有关 Environment and Settings 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by