// 清除缓存的方法
- (void)deleteAll
{
DataBaseHandler *db = [DataBaseHandler shareInstance];
MBProgressHUD *mb = [[MBProgressHUD alloc] initWithView:self.view];
[self.view addSubview:mb];
mb.mode = MBProgressHUDModeCustomView;
mb.labelText = @"清空成功";
mb.customView = [[[UIImageView alloc] initWithImage:[UIImage imageNamed:@"hubyes.png"]] autorelease];
[mb showAnimated:YES whileExecutingBlock:^{
sleep(1);
} completionBlock:^{
[mb removeFromSuperview];
}];
[db delete:@"browsed" Menu:nil];
self.allArr = nil;
[self.browsedView reloadData];
}