摘要： Item 5: 始终提供ToString()方法。Always Provide ToString()略.中心思想:ToString()几个重写版本，以及一些格式化输出。Item 6: Understand the Relationships Among the ManyDifferent Concepts of EqualityItem 6: 了解Equality的不同概念之间的关系。Unders... 阅读全文

摘要： Item 3: 使用is或as操作符，避免强制转型Prefer the is or as Operators to CastsThe correct choice is to use the as operator whenever you can because itis safer than blindly casting and is more efficient at runtime. T... 阅读全文