摘要:-(void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event { [self performSelectorInBackground:@selector(download) withObject:nil]; }
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posted @ 2016-07-22 23:56
posted @ 2016-07-22 23:56
posted @ 2016-07-20 11:20
posted @ 2016-07-05 18:54