由网友(开心就好)分享简介：我本来期望下面的C＃程序仅打印EOF！有一次我在控制台中按下Ctrl-Z。相反，程序只要我按Enter键完成：I would have expected the following C# program to only print "EOF!" once I hit "Ctrl-Z" in the console....

我本来期望下面的C＃程序仅打印EOF！有一次我在控制台中按下Ctrl-Z。 相反，程序只要我按Enter键完成：

I would have expected the following C# program to only print "EOF!" once I hit "Ctrl-Z" in the console. Instead, the program finishes as soon as I hit Enter:

var textReader = Console.In;
var sb = new StringBuilder();
while(textReader.Peek() != -1)
{
    sb.Append((char)textReader.Read());
}
Console.WriteLine("Entered: '{0}'", sb);
Console.WriteLine("EOF!");

例如：

12345 <= I entered this
Entered: '12345 <= program outputs this
'
EOF!
Press any key to continue . . .

任何人都可以解释上述现象？这根本不是我的预期。

Can anyone explain the above behaviour? It's not at all what I expected.

我怎样才能读取超过1线路输入，从Console.In一个字符的时间？

How can I read more than 1 line of input from Console.In one character at a time?

更新：如下回答：问题是，皮克（）不能依赖。使用阅读（）的作品，但。

Update: As answered below: The issue is that Peek() can't be relied on. Using Read() works though.

推荐答案

Console.In.Read（）返回-1 EOF，所以，你可以这样做：

Console.In.Read() returns -1 on EOF, So you can do this:

int c;
while((c = Console.In.Read()) != -1)
Console.Out.Write((char)c);