Objective-C 编码标准 [关闭]

Objective-C 是一种面向对象的编程语言，用于开发 iOS 和 macOS 应用程序。在编写 Objective-C 代码时，遵循编码标准是非常重要的，因为它可以提高代码的可读性和可维护性。本文将介绍一些常见的 Objective-C 编码标准，并提供一些示例代码。

objective-c
@interface User : NSObject
@property (nonatomic, strong) NSString *name;
@property (nonatomic, assign) NSInteger age;
- (void)calculateSumWithNumber1:(NSInteger)number1 number2:(NSInteger)number2;
@end
@implementation User
- (void)calculateSumWithNumber1:(NSInteger)number1 number2:(NSInteger)number2 {
    NSInteger sum = number1 + number2;
    NSLog(@"The sum is %ld", (long)sum);
}
@end
int main() {
    User *user = [[User alloc] init];
    user.name = @"John";
    user.age = 25;
    [user calculateSumWithNumber1:10 number2:20];
    return 0;
}

objective-c
@interface User : NSObject
@property (nonatomic, strong) NSString *name;
@property (nonatomic, assign) NSInteger age;
- (void)calculateSumWithNumber1:(NSInteger)number1
                       number2:(NSInteger)number2;
@end
@implementation User
- (void)calculateSumWithNumber1:(NSInteger)number1
                       number2:(NSInteger)number2 {
    NSInteger sum = number1 + number2;
    NSLog(@"The sum is %ld", (long)sum);
}
@end
int main() {
    User *user = [[User alloc] init];
    user.name = @"John";
    user.age = 25;
    [user calculateSumWithNumber1:10
                          number2:20];
    return 0;
}

objective-c
@interface User : NSObject
@property (nonatomic, strong) NSString *name; // 用户名
@property (nonatomic, assign) NSInteger age; // 年龄
- (void)calculateSumWithNumber1:(NSInteger)number1
                       number2:(NSInteger)number2; // 计算两个数的和
@end
@implementation User
- (void)calculateSumWithNumber1:(NSInteger)number1
                       number2:(NSInteger)number2 {
    NSInteger sum = number1 + number2;
    NSLog(@"The sum is %ld", (long)sum);
}
@end
int main() {
    User *user = [[User alloc] init];
    user.name = @"John"; // 设置用户名
    user.age = 25; // 设置年龄
    [user calculateSumWithNumber1:10
                          number2:20]; // 计算两个数的和
    return 0;
}

objective-c
- (BOOL)doSomethingWithError:(NSError **)error {
    if (/* 检查错误的条件 */) {
        // 创建一个 NSError 对象
        NSDictionary *userInfo = @{NSLocalizedDescriptionKey: @"发生了一个错误"};
        *error = [NSError errorWithDomain:@"com.example.app" code:100 userInfo:userInfo];
        return NO;
    }
    return YES;
}
NSError *error = nil;
BOOL success = [self doSomethingWithError:&error];
if (!success) {
    NSLog(@"发生了一个错误: %@", error.localizedDescription);
}