@fiy-fish
2015-07-15T20:20:26.000000Z
字数 3265
阅读 1252
Objective-c
// main.m
// day05-05-课程类设计
//
// Created by Aaron on 15/7/7.
// Copyright (c) 2015年 Aaron. All rights reserved.
//
#import <Foundation/Foundation.h>
#import "Student.h"
int main(int argc, const char * argv[]) {
@autoreleasepool {
Student *std = [[Student alloc] initWithName:@"蜡笔小新" withAge:3];
Course *course1 = [[Course alloc] init];
[course1 setCourseName:@"IOS"];
[course1 setTeacherName:@"小白"];
[course1 setCourseTime:10];
Course *course2 = [[Course alloc] init];
[course2 setCourseName:@"Android"];
[course2 setTeacherName:@"小黑"];
[course2 setCourseTime:20];
Course *course3 = [[Course alloc] init];
[course3 setCourseName:@"winCE"];
[course3 setTeacherName:@"小红"];
[course3 setCourseTime:19];
[std addCourse:course1];
[std addCourse:course2];
[std addCourse:course3];
//[std showInfo];
Course *c = [std getCourseByIndex:10];
NSLog(@"%@",c);
NSLog(@"%@",[std allTeacherName]);
}
return 0;
}
#import <Foundation/Foundation.h>
#import "Course.h"
/*
创建一个学生类,包含属性
姓名name,年龄age,三门课程course1,course2,course3
实现功能:
初始化姓名和年龄
设置某一门课程
获取某一门课的对象
获得学生所有任课老师的名字
获得学生选课的所有课时
获得学生选的所有课的课名
打印学生的基本信息和课程信息
*/
@interface Student : NSObject
{
NSString *_name;
NSInteger _age;
NSMutableArray *_courseArray;
}
-(instancetype)initWithName:(NSString *)name withAge:(NSInteger)age;
-(void)addCourse:(Course *)course;
-(Course *)getCourseByIndex:(NSInteger)index;
-(NSString *)allTeacherName;
-(NSInteger)allTime;
-(NSString *)allCourseName;
-(void)showInfo;
@end
import "Student.h"
@implementation Student
-(instancetype)initWithName:(NSString *)name withAge:(NSInteger)age
{
if(self = [super init])
{
_name = name;
_age = age;
}
return self;
}
-(void)addCourse:(Course *)course
{
if(!_courseArray)
{
_courseArray = [NSMutableArray array];
}
if([_courseArray count] < 3)
{
[_courseArray addObject:course];
}
}
-(Course *)getCourseByIndex:(NSInteger)index
{
if(index>=0 && index<3)
{
return _courseArray[index];
}
return nil;
}
-(NSString *)allTeacherName
{
//return [self getStringByNum:0];
return [self getStringBySelector:@selector(teacherName) andFormat:@"老师%d:%@ "];
}
-(NSString *)getStringBySelector:(SEL)sel andFormat:(NSString *)format
{
NSMutableString *str = [NSMutableString string];
for(int i = 0; i < [_courseArray count]; i++)
{
Course *obj = _courseArray[i];
//[str appendFormat:format,i+1,
//[obj performSelector:sel]];
[str appendFormat:format,i+1,
[obj performSelector:sel]];
}
return str;
}
#if 0
-(NSString *)getStringByNum:(int)num
{
NSMutableString *str = [NSMutableString string];
for(int i = 0; i < [_courseArray count]; i++)
{
Course *obj = _courseArray[i];
if(num == 0)
{
[str appendFormat:@"老师%d:%@ ",i+1,
[obj teacherName]];
}
else
{
[str appendFormat:@"课程%d:%@ ",i+1,
[obj courseName]];
}
}
return str;
}
#endif
-(void)showInfo
{
NSLog(@"%@",_courseArray);
}
@end
#import <Foundation/Foundation.h>
@interface Course : NSObject
{
NSString *_courseName;
NSString *_teacherName;
NSInteger _courseTime;
}
-(void)setCourseName:(NSString *)name;
-(void)setTeacherName:(NSString *)name;
-(void)setCourseTime:(NSInteger)time;
-(NSString *)courseName;
-(NSString *)teacherName;
-(NSInteger)courseTime;
@end
#import "Course.h"
@implementation Course
-(void)setCourseName:(NSString *)name
{
if(_courseName != name)
{
_courseName = name;
}
}
-(void)setTeacherName:(NSString *)name
{
if(_teacherName != name)
{
_teacherName = name;
}
}
-(void)setCourseTime:(NSInteger)time
{
if(_courseTime != time)
{
_courseTime = time;
}
}
-(NSString *)courseName
{
return _courseName;
}
-(NSString *)teacherName
{
return _teacherName;
}
-(NSInteger)courseTime
{
return _courseTime;
}
-(NSString *)description
{
return _courseName;
}
@end