05: Declaration and implementation of object methods

1. Object Method declaration

• Format

• Characteristics

  • Object methods with-start as-(void) xx;
  • Object methods can only be called by objects
  • The member variable of the current object can be accessed in the object method
  • Call format [Object Name object method name];

• Example

//声明没有返回值的方法- (void)method;//声明有返回值的方法- (int)method;//声明有返回值有参数的方法- (int)method: (int)var;//声明有返回值有多个参数的方法- (int)method: (int)var1 andVar2: (int)var2;

2. Object method Implementation

+ 必须卸载以@implementation开头，@end之间+ 在声明的后面加上{}即表示实现+ 讲需要实现的代码写在{}中

05: Declaration and implementation of object methods