for (UIView *subview in view.subviews) {
[subview removeFromSuperview];
}
或者
[view.subviews makeObjectsPerformSelector:@selector(removeFromSuperview)];
for (UIView *subview in view.subviews) {
[subview removeFromSuperview];
}
或者
[view.subviews makeObjectsPerformSelector:@selector(removeFromSuperview)];