C# 在 ReadToEnd 后关闭 StreamReader
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Closing StreamReader after ReadToEnd
提问by Alexander Prokofyev
Is it possible somehow to close StreamReader after calling ReadToEnd method in construction like this:
在构造中调用 ReadToEnd 方法后，是否有可能以某种方式关闭 StreamReader，如下所示：
string s = new StreamReader("filename", Encoding.UTF8).ReadToEnd();
Any alternative elegant construction with the same semantics will be also accepted.
任何具有相同语义的替代优雅构造也将被接受。
采纳答案by Jon Skeet
I think the method you're really after is File.ReadAllText, if you're just trying to read all the text from a file in the shortest possible code.
我认为您真正想要的方法是File.ReadAllText，如果您只是想以尽可能短的代码读取文件中的所有文本。
If you don't specify the encoding, it will use UTF-8 automatically.
如果不指定编码，它将自动使用 UTF-8。
回答by Scott Saad
回答by JSC
No there isn't but it's always a good practice to use dispose objects who inherit form IDisposable. If you don't do this in a loop you will get memory leaks
不，没有，但使用继承 IDisposable 形式的处置对象始终是一个好习惯。如果您不在循环中执行此操作，则会出现内存泄漏
string s = string.Empty;
using(StreamReader sr = new StreamReader("filename", Encoding.UTF8))
{
s = sr.ReadToEnd();
}
