A.emp.name=@"李連杰"; B.emp->name=@"周杰倫"; C.[empset Value:@"柳傳志"forKey:@"name"]; D.[empset Name:@"黃圣依"];
A.-(id)personWithName:(NSString*)theName; B.-(id)personwithName:(NSString*)theName; C.+(id)personwithName:(NSString*)theName; D.+(id)personWithName:(NSString*)theName;
A.NSArray(*aBlock)(NSString*str,NSString*str2) B.NSArray^(*aBlock)(NSString*str,NSString*str2) C.NSArray(^aBlock)(NSString*str,NSString*str2) D.NSArray*(^aBlock)(NSString*str,NSString*str2)