//
// MyRect.h
// OC3_MyRect
//
// Created by zhangxueming on 15/6/9.
// Copyright (c) 2015年 zhangxueming. All rights reserved.
//
#import <Foundation/Foundation.h>
@interface MyRect : NSObject
{
int _length;
int _width;
}
- (id)initWithLength:(
int)length andWidth:(
int)width;
- (
int)length;
- (
int)width;
- (
void)setLength:(
int)length andWidth:(
int)width;
- (
int)area;
- (
void)printArea;
@end
//
// MyRect.m
// OC3_MyRect
//
// Created by zhangxueming on 15/6/9.
// Copyright (c) 2015年 zhangxueming. All rights reserved.
//
#import "MyRect.h"
@implementation MyRect
- (id)initWithLength:(
int)length andWidth:(
int)width
{
self =
[super init] ;
if (self) {
_length =
length;
_width =
width;
}
return self;
}
- (
int)length
{
return _length;
}
- (
int)width
{
return _width;
}
- (
void)setLength:(
int)length andWidth:(
int)width
{
_length =
length;
_width =
width;
}
- (
int)area;
{
return [self length] *
[self width];
}
- (
void)printArea
{
NSLog(@"area = %i", [self area]);
}
@end
//
// main.m
// OC3_MyRect
//
// Created by zhangxueming on 15/6/9.
// Copyright (c) 2015年 zhangxueming. All rights reserved.
//
#import <Foundation/Foundation.h>
#import "MyRect.h"
int main(
int argc,
const char *
argv[]) {
@autoreleasepool {
MyRect *rect =
[[MyRect alloc] init];
[rect setLength:10 andWidth:
5];
[rect printArea];
}
return 0;
}
转载于:https://www.cnblogs.com/0515offer/p/4564541.html
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