Objective-C 中的类属性列表

Objective-C 是一种面向对象的编程语言，它广泛应用于苹果公司的操作系统 iOS 和 macOS 的开发中。在 Objective-C 中，类属性列表是一个重要的概念，它允许我们定义类的属性并对其进行操作。本文将介绍 Objective-C 中的类属性列表，并通过案例代码来解释其用法。

@interface Person : NSObject
@property(nonatomic, strong) NSString *name;
@property(nonatomic, assign) NSInteger age;
@end

 
#import 
Person *person = [[Person alloc] init];
unsigned int count;
objc_property_t *properties = class_copyPropertyList([person class], &count);
for (int i = 0; i < count; i++) {
    objc_property_t property = properties[i];
    const char *name = property_getName(property);
    NSLog(@"Property name: %s", name);
}
free(properties);

@interface Person : NSObject
@property(nonatomic, strong) NSString *name;
@property(nonatomic, assign) NSInteger age;
@end
@implementation Person
@end
int main(int argc, const char * argv[]) {
    @autoreleasepool {
        Person *person = [[Person alloc] init];
        person.name = @"John";
        person.age = 25;
        NSLog(@"Name: %@", person.name);
        NSLog(@"Age: %ld", (long)person.age);
    }
    return 0;
}