// 3-[了解]#pragma mark指令的使用,用于查找代码. #import <Foundation/Foundation.h> //声明一个狗类 #pragma mark 声明狗类 @interface Dog : NSObject @end //实现一个狗类 #pragma mark 实现狗类 @implementation Dog @end //声明一个人类 #pragma mark - 对类进行分组 #pragma mark - #pragma mark 声明人类 @inter
Each business object used in an XAF application should have a default property. The default property value is treated as a human-readable identifier in an XAF application UI (e.g., FullName of a Contact, Subject of a Task, etc.). Default property val