Why is File.Open so much better than File.Create for overwriting an existing file?

Why is File.Open so much better than File.Create for overwriting an existing file?

贱贱哒 发布于 2021-11-25 字数 781 浏览 857 回复 4 原文

This is in relation to this other SO question which asks how to overwrite an existing file.

The top answer is this:

FileStream file = File.Open("text.txt", FileMode.Create);

My answer was this:

FileStream fs = System.IO.File.Create(fileName);

As of when I wrote this question, the tally was 14-0 in favor of Open.

If votes are an indication of good versus bad solutions, this makes me wonder a bit:

Is there something I'm missing in
these methods that would make it
clearly that much better to choose
Open over Create?

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难理解 2022-06-07 4 楼

First, I think you might be reading too much into it. I, for instance, I tend to up-vote the first correct answer, and neglect any further answers... so getting there first helps a bit.

Second, File.Open reads better than System.IO.File.Open, even though they are the same.

Third, Create is not as semantically relevant as Open, from a readability standpoint. If you want to create AND open a file, the first is more explicit.

死开点丶别碍眼 2022-06-07 3 楼

Well, I too answered with Create but Open really is the better solution as you are indicating that you wish to open a file and with the FileMode.Create you are indicating that you wish to create the file if it does not already exist. I think that is pretty clear.

一页 2022-06-07 2 楼

There only one place I know you could look for an answer to this one: Reflector

And it turns out both call new FileStream(... with a full set of arguments!

清醇 2022-06-07 1 楼

To me, I know exactly what File.Open("...", FileMode.Create) does because I can hover over FileMode.Create and it tells me that is will create a new file each time. File.Create("...") has no such tool tip that indicates that it will do this.