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我有 5 个UIImageView标签，标签为 100、101、102、103、104。

我想让它们在用户验证练习时出现。因此，如果验证了 1 个练习UIImageView，将出现带有标签 100 的练习。如果验证了 2 个练习，那么UIImageView标签 100 和 101 都会出现，依此类推。我尝试了下面的代码，但只出现了一张图像。为什么？我怎样才能解决这个问题？

for (int j = 0; j < 5; j++) {

    UIImageView *coin = (UIImageView *)[self.view viewWithTag:100+j];

    NSLog(@"coin.x: %f, coin.y: %f", coin.frame.origin.x, coin.frame.origin.y);
    NSLog(@"cointag = %d", coin.tag);
    if (j < library.themesCompleted)
    {
        NSLog(@"HIDDEN = NO");
        coin.hidden = NO;        
    }
    else
    {
        NSLog(@"HIDDEN = YES");
        coin.hidden = YES;
    }
}

这出现在日志中：

2012-06-27 18:24:06.463 test[4499:1da07] coin.x: 77.000000, coin.y: 1.000000
2012-06-27 18:24:06.463 test[4499:1da07] cointag = 100
2012-06-27 18:24:06.463 test[4499:1da07] HIDDEN = NO
2012-06-27 18:24:06.464 test[4499:1da07] coin.x: 92.000000, coin.y: 1.000000
2012-06-27 18:24:06.464 test[4499:1da07] cointag = 101
2012-06-27 18:24:06.464 test[4499:1da07] HIDDEN = NO
2012-06-27 18:24:06.464 test[4499:1da07] coin.x: 107.000000, coin.y: 2.000000
2012-06-27 18:24:06.465 test[4499:1da07] cointag = 102
2012-06-27 18:24:06.465 test[4499:1da07] HIDDEN = YES
2012-06-27 18:24:06.465 test[4499:1da07] coin.x: 122.000000, coin.y: 1.000000
2012-06-27 18:24:06.465 test[4499:1da07] cointag = 103
2012-06-27 18:24:06.466 test[4499:1da07] HIDDEN = YES
2012-06-27 18:24:06.466 test[4499:1da07] coin.x: 136.000000, coin.y: 1.000000
2012-06-27 18:24:06.466 test[4499:1da07] cointag = 104
2012-06-27 18:24:06.466 test[4499:1da07] HIDDEN = YES
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