从 C# 2.0 编译器开始，无论如何，String.Empty 几乎没有什么意义，实际上在许多情况下它是一个悲观，因为编译器可以内联一些对 "" 的引用，但不能对 String.Empty 做同样的事情.

As of the C# 2.0 compiler, there is very little point to String.Empty anyway, and in fact in many cases it's a pessimisation, since the compiler can inline some references to "" but can't do the same with String.Empty.

在 C# 1.1 中，避免创建大量包含空字符串的独立对象很有用，但那些日子已经一去不复返了."" 工作得很好.

In C# 1.1 it was useful to avoid creating lots of independent objects all containing the empty string, but those days are gone. "" works just fine.