[特別プログラマー]Foundationフレームワーク

文字列可変オブジェクトの作成と使用 NSString*string 1=@「これは文字定数です」;

       //       
       NSString *string2 = [NSString stringWithFormat:@"123"];
       //     
        NSString *ptr = [string1 uppercaseString];
        NSLog(@"     ：%@",ptr);
        
        //     
        NSString *ptr1 = [string1 lowercaseString];
         NSLog(@"     ：%@",ptr1);
        
        //       ，    
         NSString *ptr2 = [string1 capitalizedString];
         NSLog(@"       ，    ：%@",ptr2);
        
        //    
        NSLog(@"    ：%ld",[string1 compare:string2]);

    2.可変文字列の作成と使用

         //       
        NSMutableString *mutablestring = [NSMutableString stringWithCapacity:10];
        [mutablestring appendString:@"   ，      "];
        NSLog(@"%@",mutablestring);
        
         //      
        NSRange strRange = [mutablestring rangeOfString:@"   "];
        [mutablestring deleteCharactersInRange:strRange];
        NSLog(@"%@",mutablestring);

  3.可変配列の作成

  NSArray *ac = [NSArray arrayWithObjects:@"jack",@"mill", nil];

4.可変配列の作成と使用

     NSMutableArray *array = [NSMutableArray arrayWithObjects:@"mali",@"hire", nil];
        [array addObject:@"halen"];
        [array removeObjectAtIndex:1];
           NSLog(@"%@",array);

5.列挙

   NSArray *parent = @[@"  ",@"  "];
   NSEnumerator *rator = [parent objectEnumerator];
     id object;
       while (object = [rator nextObject] ) {
            NSLog(@"object:%@",object);
        }

6.不変辞書

  NSDictionary *directionary = @{@"t1":@"  ",@"t2":@"  "};
       NSLog(@"  :%@",[directionary objectForKey:@"t2"]);

7.可変辞書

        NSArray *personvalue = @[@"  ",@"25",@"  "];
        NSArray *personkey = @[@"name",@"age",@"location"]; NSMutableDictionary  *dict2 = [NSMutableDictionary dictionaryWithObjects:personvalue forKeys: personkey];
        NSLog(@"%@",dict2[@"name"]);
        //      
        [dict2 addEntriesFromDictionary:@{@"ren":@"  "}];
         //       
        [dict2 removeObjectForKey:@"age"]; 
        //         
        [dict2 setObject:@"     " forKey:@"name"];
        [dict2 setValue:@"     " forKey:@"name"];
         //    
        [dict2 removeAllObjects];  
          NSLog(@"%@",dict2);

8.構造体

  
        CGPoint p1 = NSMakePoint(3, 6);
        NSLog(@"%.2f  %.2f",p1.x,p1.y);
        
        
        CGSize  s1 = NSMakeSize(10, 20);
        NSLog(@"%2.f  %2.f",s1.width,s1.height);
        
        
        CGRect  r1 = NSMakeRect(0,0,0,0);
        r1.origin = p1;
        r1.size = s1;
        
        NSLog(@"%.2f  %.2f  %.2f  %.2f",r1.origin.x,r1.origin.y,r1.size.width,r1.size.height);
        
        
        CGRect r2 = NSMakeRect(0, 0, 50, 80);
        NSLog(@"point(x:%.2f  y:%.2f)
 width:%.2f height:%.2f",r2.origin.x,r2.origin.y,r2.siz e.width,r2.size.height);

9.時間と構造体の使用

  struct Date{
            int year;
            int month;
            int day;
            int  hh;
            int  mm;
            int ss;

        };
        struct Date d1 ={2015,05,19,18,14,50};
        NSLog(@"%i/%i/%i %i:%i:%i",d1.year,d1.month,d1.day,d1.hh,d1.mm,d1.ss);

10.NSNumber

 NSNumber *number1 = [NSNumber numberWithChar:'k'];
        NSLog(@"%@",number1);
        
        NSNumber *number2 = [NSNumber numberWithInt:32544];
          NSLog(@"%@",number2);
          
        number = @12345ul;
          NSLog(@"%@",number);
          
        number = @12345ll;
          NSLog(@"%@",number);
          
        number = @123.45f;
          NSLog(@"%@",number);
          
        number = @YES;
        NSLog(@"%@",number);

        unsigned int a=-12;
        NSLog(@"%u",a);