如何获得一个简单的计算机名称（没有域名）在c＃中的完整计算机名称？(How to get a simple computer name (without the domain name) out of

如何获得一个简单的计算机名称（没有域名）在c＃中的完整计算机名称？(How to get a simple computer name (without the domain name) out of a full computer name in c#?)

我是否可以从完全限定的名称（可以带或不带域名）中获得简单的计算机名称（不含域名）？ 计算机名称是否可以在其中加上点（。）符号？

（这个问题似乎正在做相反的事）

Can I get just a simple computer name (without the domain name) from a fully qualified name (can be with or without a domain name)? Is it possible for a computer name to have a dot (.) sign in it?

(this question seems to be doing the reverse)

最满意答案

没有主机名不能包含一个点（引用维基百科和RFC 952 （见“假设”）和RFC 1123 ）。 它是主机名和域名之间的分隔符。 所以你可以简单地做

string fullName = "foobar.domain"; string hostName = fullName.Substring(0, fullName.IndexOf('.'));

（当然，正确的错误检查，对于“fullName”实际上不是全名的情况）。

No hostnames cannot contain a dot (reference Wikipedia and RFC 952 (see "ASSUMPTIONS") and RFC 1123). It is the delimiter between the hostname and the domainname. So you can simply do

string fullName = "foobar.domain"; string hostName = fullName.Substring(0, fullName.IndexOf('.'));

(With proper error checking of course, for the case that "fullName" is not actually a fullname).