//

//  main.m

//  集合(数组)对象的内存管理（MRC中）

//

#import <Foundation/Foundation.h>

#import "Person.h"

int main(int argc, const char * argv[]) {

    @autoreleasepool {

        // 1. 如果将一个对象添加到一个数组中, 那么数组会对对象进行一个retain

        Person *p = [Person new];

        NSLog(@"reatinCount = %lu", [p retainCount]);

        NSMutableArray *arrM = [[NSMutableArray alloc] init];

        [arrM addObject:p];

        NSLog(@"reatinCount = %lu", [p retainCount]);

        [p release];

        NSLog(@"reatinCount = %lu", [p retainCount]);

        // 当数组对象释放之后, 会给数组中所有的对象发送一条release消息

        [arrM release];

        Person *p = [Person new]; //

        NSLog(@"reatinCount = %lu", [p retainCount]);

        NSMutableArray *arrM = [[NSMutableArray alloc] init];

        [arrM addObject:p]; //

        NSLog(@"reatinCount = %lu", [p retainCount]);

        [p release]; // 1

        // 当数组移除一个对象之后, 会给这个对象发送一条release消息

        [arrM removeObject:p];

    }

    return ;

}