相关疑难解决方法(0)

给定(任意):

CGRect frame = CGRectMake(0.0f, 0.0f, 100.0f, 30.0f);

以下两个代码片段之间的区别是什么？

1.

    UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
    button.frame = frame;

2.

    UIButton *button = [[[UIButton alloc] initWithFrame:frame] autorelease];