![]()
以下是一个使用Objective-C编写的简单示例代码，用于展示如何创建一个简单的学生管理系统。该系统可以添加学生、显示学生列表以及按姓名进行搜索。请注意，这只是一个基本的示例，没有实际的数据存储或用户界面。
```objective-c
#import
// 学生类
@interface Student : NSObject
@property (nonatomic, strong) NSString *name;
@property (nonatomic, strong) NSString *studentID;
- (instancetype)initWithName:(NSString *)name studentID:(NSString *)studentID;
@end
@implementation Student
- (instancetype)initWithName:(NSString *)name studentID:(NSString *)studentID {
self = [super init];
if (self) {
_name = name;
_studentID = studentID;
}
return self;
}
@end
// 学生管理器类
@interface StudentManager : NSObject
@property (nonatomic, strong) NSMutableArray *students;
- (void)addStudent:(Student *)student;
- (void)displayStudents;
- (Student *)searchStudentByName:(NSString *)name;
@end
@implementation StudentManager
- (instancetype)init {
self = [super init];
if (self) {
_students = [[NSMutableArray alloc] init];
}
return self;
}
- (void)addStudent:(Student *)student {
[self.students addObject:student];
}
- (void)displayStudents {
for (Student *student in self.students) {
NSLog(@"Name: %@, ID: %@", student.name, student.studentID);
}
}
- (Student *)searchStudentByName:(NSString *)name {
for (Student *student in self.students) {
if ([student.name isEqualToString:name]) {
return student;
}
}
return nil;
}
@end
// 主函数
int main(int argc, const char * argv[]) {
@autoreleasepool {
StudentManager *manager = [[StudentManager alloc] init];
// 添加学生
Student *student1 = [[Student alloc] initWithName:@"Alice" studentID:@"001"];
[manager addStudent:student1];
Student *student2 = [[Student alloc] initWithName:@"Bob" studentID:@"002"];
[manager addStudent:student2];
Student *student3 = [[Student alloc] initWithName:@"Charlie" studentID:@"003"];
[manager addStudent:student3];
// 显示学生列表
[manager displayStudents];
// 搜索学生
NSString *searchName = @"Bob";
Student *foundStudent = [manager searchStudentByName:searchName];
if (foundStudent) {
NSLog(@"Found student: Name: %@, ID: %@", foundStudent.name, foundStudent.studentID);
} else {
NSLog(@"Student with name %@ not found.", searchName);
}
}
return 0;
}
```
以上示例代码演示了如何创建学生类和学生管理器类。学生类具有姓名和学生ID属性，并且可以使用初始化方法进行初始化。学生管理器类具有一个学生数组，可以添加学生、显示学生列表以及按姓名搜索学生。在主函数中，我们创建了一个学生管理器对象，添加了几个学生，并演示了显示学生列表和按姓名搜索学生的功能。请注意，这只是一个简单的示例，实际的学生管理系统可能包含更多的功能和数据存储方式。
当然！以下是另一个Objective-C代码示例，用于演示如何使用Objective-C编写一个简单的图书馆管理系统。该系统可以添加图书、显示图书列表以及按标题进行搜索。
```objective-c
#import
// 图书类
@interface Book : NSObject
@property (nonatomic, strong) NSString *title;
@property (nonatomic, strong) NSString *author;
- (instancetype)initWithTitle:(NSString *)title author:(NSString *)author;
@end
@implementation Book
- (instancetype)initWithTitle:(NSString *)title author:(NSString *)author {
self = [super init];
if (self) {
_title = title;
_author = author;
}
return self;
}
@end
// 图书馆管理器类
@interface LibraryManager : NSObject
@property (nonatomic, strong) NSMutableArray *books;
- (void)addBook:(Book *)book;
- (void)displayBooks;
- (Book *)searchBookByTitle:(NSString *)title;
@end
@implementation LibraryManager
- (instancetype)init {
self = [super init];
if (self) {
_books = [[NSMutableArray alloc] init];
}
return self;
}
- (void)addBook:(Book *)book {
[self.books addObject:book];
}
- (void)displayBooks {
for (Book *book in self.books) {
NSLog(@"Title: %@, Author: %@", book.title, book.author);
}
}
- (Book *)searchBookByTitle:(NSString *)title {
for (Book *book in self.books) {
if ([book.title isEqualToString:title]) {
return book;
}
}
return nil;
}
@end
// 主函数
int main(int argc, const char * argv[]) {
@autoreleasepool {
LibraryManager *libraryManager = [[LibraryManager alloc] init];
// 添加图书
Book *book1 = [[Book alloc] initWithTitle:@"Book 1" author:@"Author 1"];
[libraryManager addBook:book1];
Book *book2 = [[Book alloc] initWithTitle:@"Book 2" author:@"Author 2"];
[libraryManager addBook:book2];
Book *book3 = [[Book alloc] initWithTitle:@"Book 3" author:@"Author 3"];
[libraryManager addBook:book3];
// 显示图书列表
[libraryManager displayBooks];
// 搜索图书
NSString *searchTitle = @"Book 2";
Book *foundBook = [libraryManager searchBookByTitle:searchTitle];
if (foundBook) {
NSLog(@"Found book: Title: %@, Author: %@", foundBook.title, foundBook.author);
} else {
NSLog(@"Book with title %@ not found.", searchTitle);
}
}
return 0;
}
```
以上示例代码演示了如何创建图书类和图书馆管理器类。图书类具有标题和作者属性，并且可以使用初始化方法进行初始化。图书馆管理器类具有一个图书数组，可以添加图书、显示图书列表以及按标题搜索图书。在主函数中，我们创建了一个图书馆管理器对象，添加了几本图书，并演示了显示图书列表和按标题搜索图书的功能。
请注意，这只是一个简单的示例，实际的图书馆管理系统可能包含更多的功能和数据存储方式。此示例仅用于演示Objective-C语言的基本用法。
标签：
