---C#--常量不能再被static(静态)修饰----
public static const int i=1;
常量“indexer_of_c_sharp.Program.i”不能标记为 static (CS0504) - C:\projects\indexer_of_c_sharp\indexer_of_c_sharp\Program.cs:56,27
常量“indexer_of_c_sharp.Program.i”不能标记为 static (CS0504) - C:\projects\indexer_of_c_sharp\indexer_of_c_sharp\Program.cs:56,27