摘要:
本文不讨论:条件(三元)运算符 (?:) 本文假定你熟悉值类型、引用类型、可空化、泛型等基本概念 概念 ?:可空类修饰符,是System.Nullable<T>的简写,下面两条语句等效。 private System.Nullable<System.DateTime> _SubmitDate; pr 阅读全文
摘要:
error:as subject solution: 1. Must be declared as static 2. Main, is defined with the wrong case, such as lower-case main. 3. must return void or int 阅读全文