Objective-C 2.0程序设计

按有用程度 按页码先后 最新笔记

• 

  XCode4控制台

  飞林沙

  所有的书上，都是讲XCode3. 网上所有的视频，都是讲XCode4怎么建立一个GUI…… 学习Object-c语法还是控制台把….. File ---> New Project ---> Command Line Tools ---> Type(Foundation) (更多)

  所有的书上，都是讲XCode3.

  网上所有的视频，都是讲XCode4怎么建立一个GUI……

  学习Object-c语法还是控制台把…..

  File ---> New Project ---> Command Line Tools ---> Type(Foundation) (收起)

  2011-12-14 15:50:05   3回应

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• 

  面向对象

  飞林沙

  /代码内容已省略/ (更多)

  //
  //  main.m
  //  Demo2
  //
  //  Created by Xin Huang on 11-12-13.
  //  Copyright (c) 2011年 douban. All rights reserved.
  //
  
  #import <Foundation/Foundation.h>
  #import "XYPoint.h"
  #import "Rectangle.h"
  
  int main (int argc, constchar * argv[])
  {
  
      @autoreleasepool {
  
          Rectangle* rec = [Rectanglenew];
          [rec set_width:20 andSetHeight:10];
  
          NSLog(@"area:%i",[rec area]);
  
          // insert code here...
          NSLog(@"Hello, World!");
  
      }
      return 0;
  }
  
  
  //
  //  XYPoint.h
  //  Demo2
  //
  //  Created by Xin Huang on 11-12-13.
  //  Copyright (c) 2011年 douban. All rights reserved.
  //
  
  #import <Foundation/Foundation.h>
  
  @interface XYPoint : NSObject
  {
      int x;
      int y;
  }
  
  @propertyint x,y;
  
  -(void)setX:(int)x andY:(int)y;
  
  @end
  
  //
  //  XYPoint.m
  //  Demo2
  //
  //  Created by Xin Huang on 11-12-13.
  //  Copyright (c) 2011年 douban. All rights reserved.
  //
  
  #import "XYPoint.h"
  
  @implementation XYPoint
  
  @synthesize x,y;
  
  - (void)setX:(int)x andY:(int)y
  {
      self.x = x;
      self.y = y;
  }
  
  @end
  
  //
  //  Point.h
  //  Demo2
  //
  //  Created by Xin Huang on 11-12-13.
  //  Copyright (c) 2011年 douban. All rights reserved.
  //
  
  #import <Foundation/Foundation.h>
  
  @classXYPoint;
  @interface Rectangle: NSObject
  {
      int width;
      int height;
      XYPoint* point;
  }
  
  @propertyint width,height;
  
  - (XYPoint *) origin;
  - (void) set_origin:(XYPoint *)point;
  - (void) set_width:(int)width andSetHeight:(int)height;
  - (int) area;
  
  @end
  
  //
  //  Point.m
  //  Demo2
  //
  //  Created by Xin Huang on 11-12-13.
  //  Copyright (c) 2011年 douban. All rights reserved.
  //
  
  #import "Rectangle.h"
  
  @implementation Rectangle
  
  @synthesize width,height;
  
  - (XYPoint *) origin
  {
      returnpoint;
  }
  
  - (void) set_origin:(XYPoint *)point
  {
      self -> point = point;
  }
  
  - (void) set_width:(int)width andSetHeight:(int)height
  {
      self.width = width;
      self.height = height;
  }
  
  - (int) area
  {
      returnself.height * self.width;
  }
  
  
  @end
  
  
  

  (收起)

  2011-12-14 15:49:33   回应

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  类，对象和方法

  飞林沙

  /代码内容已省略/ (更多)

  //
  //  main.m
  //  OCStudy
  //
  //  Created by Xin Huang on 11-12-11.
  //  Copyright (c) 2011年 douban. All rights reserved.
  //
  
  #import <Foundation/Foundation.h>
  
  @interface Person : NSObject{
      int age;
      int deposit;
  }
  
  - (void)print;
  - (void)add_deposit:(int)n;
  - (int)deposit;
  - (int)age;
  
  @end
  
  @implementation Person
  
  - (void)print
  {
      NSLog(@"age is %i , deposit is %i",age,deposit);
  }
  
  - (void)add_deposit:(int)n
  {
      deposit += n;
  }
  
  - (void)set_age:(int)n
  {
      age = n;
  }
  
  - (void)set_deposit:(int)n
  {
      deposit = n;
  }
  
  - (int)deposit
  {
      returndeposit;
  }
  
  - (int)age
  {
      returnage;
  }
  
  @end
  
  
  int main (int argc, constchar * argv[])
  {
  
      @autoreleasepool {
  
          //Person *p1 ;
          //p1 = [Person alloc];
          //p1 = [p1 init];
  
          //Person *p1 = [[Person alloc] init]; 
  
          Person *p1 = [Person new];
          [p1 set_age:23];
          [p1 set_deposit:800];
          [p1 print];
  
          NSLog(@"age:%i",[p1 age]);
  
  
      }
      return 0;
  }
  
  

  (收起)

  2011-12-14 15:48:26   回应

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  第1页

  kelvin

  有没有源码。。。求。。 (更多)

  有没有源码。。。求。。 (收起)

  2011-06-04 18:30:58   回应

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  第1页

  博涵

  前言部分 Objective-c建立在C语言之上，意味着它是在c语言基础上添加了扩展而创造出来的能够创建和操作对象的一门新的程序设计语言。 (更多)

  前言部分

  Objective-c建立在C语言之上，意味着它是在c语言基础上添加了扩展而创造出来的能够创建和操作对象的一门新的程序设计语言。 (收起)

  2011-08-10 09:07:43   回应

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  第24页

  Ovilia (静观己心，厚积薄发)

  First Objective-C program after `Hello world'. /代码内容已省略/ (更多)

  First Objective-C program after `Hello world'.

  //
  //  main.m
  //  prog1
  //
  //  Created by ovilia on 9/22/11.
  //  Copyright 2011 __MyCompanyName__. All rights reserved.
  //
  
  #import <Foundation/Foundation.h>
  
  /**
   * @interface section
   */
  @interface Fraction : NSObject 
  {
  @private
      int numerator;
      int denominator;
  }
  
  -(void) print;
  -(void) setNumerator:(int)n;
  -(void) setDenominator:(int)d;
  
  @end
  
  /**
   * @implementation section
   */
  @implementation Fraction
  
  -(void) print
  {
      NSLog(@"%i/%i", numerator, denominator);
  }
  
  -(void) setNumerator:(int)n
  {
      numerator = n;
  }
  
  -(void) setDenominator:(int)d
  {
      denominator = d;
  }
  
  @end
  
  /**
   * program section
   */
  int main (int argc, const char * argv[])
  {
  
      NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];
  
      Fraction *myFraction;
  
      // Create an instance
      myFraction = [Fraction alloc];
      myFraction = [myFraction init];
  
      // Set fraction to 1/3
      [myFraction setDenominator: 3];
      [myFraction setNumerator: 1];
  
      // Display
      NSLog(@"The value of myFraction is ");
      [myFraction print];
      [myFraction release];
  
      [pool drain];
      return 0;
  }
  
  
  

  (收起)

  2011-09-22 19:46:40   2回应

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• 

  XCode4控制台

  飞林沙

  所有的书上，都是讲XCode3. 网上所有的视频，都是讲XCode4怎么建立一个GUI…… 学习Object-c语法还是控制台把….. File ---> New Project ---> Command Line Tools ---> Type(Foundation) (更多)

  所有的书上，都是讲XCode3.

  网上所有的视频，都是讲XCode4怎么建立一个GUI……

  学习Object-c语法还是控制台把…..

  File ---> New Project ---> Command Line Tools ---> Type(Foundation) (收起)

  2011-12-14 15:50:05   3回应

  收藏

  推荐
• 

  面向对象

  飞林沙

  /代码内容已省略/ (更多)

  //
  //  main.m
  //  Demo2
  //
  //  Created by Xin Huang on 11-12-13.
  //  Copyright (c) 2011年 douban. All rights reserved.
  //
  
  #import <Foundation/Foundation.h>
  #import "XYPoint.h"
  #import "Rectangle.h"
  
  int main (int argc, constchar * argv[])
  {
  
      @autoreleasepool {
  
          Rectangle* rec = [Rectanglenew];
          [rec set_width:20 andSetHeight:10];
  
          NSLog(@"area:%i",[rec area]);
  
          // insert code here...
          NSLog(@"Hello, World!");
  
      }
      return 0;
  }
  
  
  //
  //  XYPoint.h
  //  Demo2
  //
  //  Created by Xin Huang on 11-12-13.
  //  Copyright (c) 2011年 douban. All rights reserved.
  //
  
  #import <Foundation/Foundation.h>
  
  @interface XYPoint : NSObject
  {
      int x;
      int y;
  }
  
  @propertyint x,y;
  
  -(void)setX:(int)x andY:(int)y;
  
  @end
  
  //
  //  XYPoint.m
  //  Demo2
  //
  //  Created by Xin Huang on 11-12-13.
  //  Copyright (c) 2011年 douban. All rights reserved.
  //
  
  #import "XYPoint.h"
  
  @implementation XYPoint
  
  @synthesize x,y;
  
  - (void)setX:(int)x andY:(int)y
  {
      self.x = x;
      self.y = y;
  }
  
  @end
  
  //
  //  Point.h
  //  Demo2
  //
  //  Created by Xin Huang on 11-12-13.
  //  Copyright (c) 2011年 douban. All rights reserved.
  //
  
  #import <Foundation/Foundation.h>
  
  @classXYPoint;
  @interface Rectangle: NSObject
  {
      int width;
      int height;
      XYPoint* point;
  }
  
  @propertyint width,height;
  
  - (XYPoint *) origin;
  - (void) set_origin:(XYPoint *)point;
  - (void) set_width:(int)width andSetHeight:(int)height;
  - (int) area;
  
  @end
  
  //
  //  Point.m
  //  Demo2
  //
  //  Created by Xin Huang on 11-12-13.
  //  Copyright (c) 2011年 douban. All rights reserved.
  //
  
  #import "Rectangle.h"
  
  @implementation Rectangle
  
  @synthesize width,height;
  
  - (XYPoint *) origin
  {
      returnpoint;
  }
  
  - (void) set_origin:(XYPoint *)point
  {
      self -> point = point;
  }
  
  - (void) set_width:(int)width andSetHeight:(int)height
  {
      self.width = width;
      self.height = height;
  }
  
  - (int) area
  {
      returnself.height * self.width;
  }
  
  
  @end
  
  
  

  (收起)

  2011-12-14 15:49:33   回应

  收藏

  推荐
• 

  类，对象和方法

  飞林沙

  /代码内容已省略/ (更多)

  //
  //  main.m
  //  OCStudy
  //
  //  Created by Xin Huang on 11-12-11.
  //  Copyright (c) 2011年 douban. All rights reserved.
  //
  
  #import <Foundation/Foundation.h>
  
  @interface Person : NSObject{
      int age;
      int deposit;
  }
  
  - (void)print;
  - (void)add_deposit:(int)n;
  - (int)deposit;
  - (int)age;
  
  @end
  
  @implementation Person
  
  - (void)print
  {
      NSLog(@"age is %i , deposit is %i",age,deposit);
  }
  
  - (void)add_deposit:(int)n
  {
      deposit += n;
  }
  
  - (void)set_age:(int)n
  {
      age = n;
  }
  
  - (void)set_deposit:(int)n
  {
      deposit = n;
  }
  
  - (int)deposit
  {
      returndeposit;
  }
  
  - (int)age
  {
      returnage;
  }
  
  @end
  
  
  int main (int argc, constchar * argv[])
  {
  
      @autoreleasepool {
  
          //Person *p1 ;
          //p1 = [Person alloc];
          //p1 = [p1 init];
  
          //Person *p1 = [[Person alloc] init]; 
  
          Person *p1 = [Person new];
          [p1 set_age:23];
          [p1 set_deposit:800];
          [p1 print];
  
          NSLog(@"age:%i",[p1 age]);
  
  
      }
      return 0;
  }
  
  

  (收起)

  2011-12-14 15:48:26   回应

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