//
// MyClass.h
// OC2_班级类
//
// Created by zhangxueming on 15/6/12.
// Copyright (c) 2015年 zhangxueming. All rights reserved.
//
#import <Foundation/Foundation.h>
#import "Student.h"
@interface MyClass : NSObject
{
NSString *
_className;
NSMutableArray *
_stuList;
}
- (id)initWithClassName:(NSString *
)name;
- (
void)setClassName:(NSString *
)name;
- (NSString*
)className;
- (
void)addStudent:(Student *
)student;
- (
void)addStudent:(Student *
)student atIndex:(NSInteger) index;
- (
void)removeStudent:(Student *
)student;
- (
void)removeStudentAtIndex:(NSInteger) index;
- (
void)replaceStudent:(Student *
)student atIndex:(NSInteger) index;
- (
void)showStuList;
- (
void)sortedByNumber;
//按照学号升序
- (
void)sortedByScore;
//按照分数降序
- (
void)sortedByName;
//按照名字降序
+ (
void)testMyClass;
@end
//
// MyClass.m
// OC2_班级类
//
// Created by zhangxueming on 15/6/12.
// Copyright (c) 2015年 zhangxueming. All rights reserved.
//
#import "MyClass.h"
@implementation MyClass
- (id)initWithClassName:(NSString *
)name
{
if (self =
[super init]) {
_className =
name;
_stuList =
[NSMutableArray array];
}
return self;
}
- (
void)setClassName:(NSString *
)name
{
_className =
name;
}
- (NSString*
)className
{
return _className;
}
- (
void)addStudent:(Student *
)student
{
if (!
[_stuList containsObject:student]) {
[_stuList addObject:student];
}
}
- (
void)addStudent:(Student *
)student atIndex:(NSInteger) index
{
[_stuList insertObject:student atIndex:index];
}
- (
void)removeStudent:(Student *
)student
{
[_stuList removeObject:student];
}
- (
void)removeStudentAtIndex:(NSInteger) index
{
[_stuList removeObjectAtIndex:index];
}
- (
void)replaceStudent:(Student *
)student atIndex:(NSInteger) index
{
[_stuList replaceObjectAtIndex:index withObject:student];
}
//遍历学生数组
- (
void)showStuList
{
for (Student *stu
in _stuList) {
[stu printStudent];
}
}
- (
void)sortedByNumber
//按照学号升序
{
[_stuList sortUsingSelector:@selector(isSortByNum:)];
}
- (
void)sortedByScore
//按照分数降序
{
[_stuList sortUsingSelector:@selector(isSortByScore:)];
}
- (
void)sortedByName
//按照名字降序
{
[_stuList sortUsingSelector:@selector(isSortByName:)];
}
+ (
void)testMyClass
{
MyClass *ios1509 = [[MyClass alloc] initWithClassName:
@"ios1509"];
for (NSInteger i=
0; i<
10; i++
) {
Student *stu = [[Student alloc] initWithName:[NSString stringWithFormat:
@"name%d", arc4random()%
50+
1] number:arc4random()%
100+
1 score:arc4random()%
101];
[ios1509 addStudent:stu];
}
NSLog(@"排序前");
[ios1509 showStuList];
NSLog(@"分数排序后");
[ios1509 sortedByScore];
[ios1509 showStuList];
NSLog(@"学号排序后");
[ios1509 sortedByNumber];
[ios1509 showStuList];
NSLog(@"名字排序后");
[ios1509 sortedByName];
[ios1509 showStuList];
}
@end
//
// Student.h
// OC2_班级类
//
// Created by zhangxueming on 15/6/12.
// Copyright (c) 2015年 zhangxueming. All rights reserved.
//
#import <Foundation/Foundation.h>
@interface Student : NSObject
{
NSString *
_name;
NSInteger _num;
NSInteger _score;
}
- (id)initWithName:(NSString *
)name number:(NSInteger)num score:(NSInteger)score;
- (
void)setName:(NSString *
)name;
- (NSString *
)name;
- (
void)setNum:(NSInteger)num;
-
(NSInteger)num;
- (
void)setScore:(NSInteger)score;
-
(NSInteger)score;
- (BOOL)isSortByScore:(Student *
)aStudent;
- (BOOL)isSortByNum:(Student *
)aStudent;
- (NSComparisonResult)isSortByName:(Student *
)aStudent;
- (
void)printStudent;
@end
//
// Student.m
// OC2_班级类
//
// Created by zhangxueming on 15/6/12.
// Copyright (c) 2015年 zhangxueming. All rights reserved.
//
#import "Student.h"
@implementation Student
- (id)initWithName:(NSString *
)name number:(NSInteger)num score:(NSInteger)score
{
if(self =
[super init])
{
_name =
name;
_num =
num;
_score =
score;
}
return self;
}
- (
void)setName:(NSString *
)name
{
_name =
name;
}
- (NSString *
)name
{
return _name;
}
- (
void)setNum:(NSInteger)num
{
_num =
num;
}
-
(NSInteger)num
{
return _num;
}
- (
void)setScore:(NSInteger)score
{
_score =
score;
}
-
(NSInteger)score
{
return _score;
}
- (BOOL)isSortByScore:(Student *
)aStudent
{
if ([self score]>
[aStudent score]) {
return YES;
}
return NO;
}
- (BOOL)isSortByNum:(Student *
)aStudent
{
if ([self num] >
[aStudent num]) {
return YES;
}
return NO;
}
- (NSComparisonResult)isSortByName:(Student *
)aStudent
{
return [[self name] compare:[aStudent name]];
}
- (
void)printStudent
{
NSLog(@"name = %@ num = %li score = %li", [self name], [self num], [self score]);
}
@end
//
// main.m
// OC2_班级类
//
// Created by zhangxueming on 15/6/12.
// Copyright (c) 2015年 zhangxueming. All rights reserved.
//
#import <Foundation/Foundation.h>
#import "MyClass.h"
int main(
int argc,
const char *
argv[]) {
@autoreleasepool {
// insert code here...
//NSLog(@"Hello, World!");
[MyClass testMyClass];
}
return 0;
}
转载于:https://www.cnblogs.com/0515offer/p/4572096.html
