<span style="font-size:32px;"> //线程中要注意的几点
//1:线程中的autorelease对象不能释放,必须手动释放或者添加自动释放池;
//2:子线程中刷新UI会失败(在子线程中不要刷新UI)
@autoreleasepool {
for (int i = 0; i<1000; i++) {
NSString *string = [NSString stringWithFormat:@"搬了%d块砖头",i+1];
NSLog(@"%@",string);
}
}
[self performSelectorOnMainThread:@selector(refreshUI) withObject:nil waitUntilDone:YES];//在主线程中刷新UI
// self.view.backgroundColor = [UIColor redColor];//刷新可能会失败(对UI的改变)</span>