MRC

Objective-C内存管理实例解析

最新推荐文章于 2025-02-12 17:25:23 发布

gaoyuqiang30

最新推荐文章于 2025-02-12 17:25:23 发布

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NSArray* array = @[@"1"];
    NSLog(@"%ld", [array retainCount]);
    NSArray* array2 = [array retain];
    NSLog(@"%ld", [array retainCount]);
    
    [array release];
    NSLog(@"%ld", [array retainCount]);
    NSLog(@"%@", array);
    [array release];<span style="color:#ff0000;">//无论是array还是array2都一样</span>

<span style="color:#ff0000;">    //release后retainCount=0,但是不会立即释放，所以下面四行指不定哪行会crash
</span>    NSLog(@"%ld", [array retainCount]);
    NSLog(@"%@", array);
    NSLog(@"%@", array);
    NSLog(@"%@", array);
    NSLog(@"%@", array);