如果 StreamReader 或 StreamWriter 没有关闭会发生什么? [英] What happens if StreamReader or StreamWriter are not closed?

问题描述

我正在为一位对LOC 要求严格的教授做作业.为此，我想执行以下操作:

I'm working on an assignment for a professor that is strict about LOC. For this reason I'd like to do the following:

(new StreamWriter(saveFileDialog.FileName)).Write(textBox.Text);

代替

StreamWriter sw = new StreamWriter(saveFileDialog.FileName);
sw.Write(textBox.Text);
sw.Close();

在第一个示例中，我没有关闭流.这个可以吗?它会导致任何安全或内存问题吗?

In the first example I don't close the stream. Is this ok? Will it cause any security or memory problems?

推荐答案

您可能没有得到任何输出，或者输出不完整.关闭编写器也会刷新它.而不是手动调用 Close，我会使用 using 语句......但如果你只是试图将文本写入一个文件，使用一次性文件.WriteAllText 调用:

You may not get any output, or incomplete output. Closing the writer also flushes it. Rather than manually calling Close at all, I'd use a using statement... but if you're just trying to write text to a file, use a one-shot File.WriteAllText call:

File.WriteAllText(saveFileDialog.FileName, textBox.Text);

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