我有一个 switch 语句，可以适本地将文本添加到 11 个 UILabel。然而，它现在变得有点长，而且相同代码的副本太多了。我怎样才能进一步改进它？我可以制作一个标签数组，然后通过 for 循环访问它们吗？？
这是代码切换语句:
switch ([number_sorted count]) {
case 1:
label_1.text = [NSString stringWithFormat:@"%ld", (long)[number_sorted[0] integerValue]];
break;
case 2:
label_1.text = [NSString stringWithFormat:@"%ld", (long)[number_sorted[0] integerValue]];
label_2.text = [NSString stringWithFormat:@"%ld", (long)[number_sorted[1] integerValue]];
break;
case 3:
label_1.text = [NSString stringWithFormat:@"%ld", (long)[number_sorted[0] integerValue]];
label_2.text = [NSString stringWithFormat:@"%ld", (long)[number_sorted[1] integerValue]];
label_3.text = [NSString stringWithFormat:@"%ld", (long)[number_sorted[2] integerValue]];
break;
case 4:
label_1.text = [NSString stringWithFormat:@"%ld", (long)[number_sorted[0] integerValue]];
label_2.text = [NSString stringWithFormat:@"%ld", (long)[number_sorted[1] integerValue]];
label_3.text = [NSString stringWithFormat:@"%ld", (long)[number_sorted[2] integerValue]];
label_4.text = [NSString stringWithFormat:@"%ld", (long)[number_sorted[3] integerValue]];
break;
case 5:
label_1.text = [NSString stringWithFormat:@"%ld", (long)[number_sorted[0] integerValue]];
label_2.text = [NSString stringWithFormat:@"%ld", (long)[number_sorted[1] integerValue]];
label_3.text = [NSString stringWithFormat:@"%ld", (long)[number_sorted[2] integerValue]];
label_4.text = [NSString stringWithFormat:@"%ld", (long)[number_sorted[3] integerValue]];
label_5.text = [NSString stringWithFormat:@"%ld", (long)[number_sorted[4] integerValue]];
break;
case 6:
label_1.text = [NSString stringWithFormat:@"%ld", (long)[number_sorted[0] integerValue]];
label_2.text = [NSString stringWithFormat:@"%ld", (long)[number_sorted[1] integerValue]];
label_3.text = [NSString stringWithFormat:@"%ld", (long)[number_sorted[2] integerValue]];
label_4.text = [NSString stringWithFormat:@"%ld", (long)[number_sorted[3] integerValue]];
label_5.text = [NSString stringWithFormat:@"%ld", (long)[number_sorted[4] integerValue]];
label_6.text = [NSString stringWithFormat:@"%ld", (long)[number_sorted[5] integerValue]];
break;
case 7:
label_1.text = [NSString stringWithFormat:@"%ld", (long)[number_sorted[0] integerValue]];
label_2.text = [NSString stringWithFormat:@"%ld", (long)[number_sorted[1] integerValue]];
label_3.text = [NSString stringWithFormat:@"%ld", (long)[number_sorted[2] integerValue]];
label_4.text = [NSString stringWithFormat:@"%ld", (long)[number_sorted[3] integerValue]];
label_5.text = [NSString stringWithFormat:@"%ld", (long)[number_sorted[4] integerValue]];
label_6.text = [NSString stringWithFormat:@"%ld", (long)[number_sorted[5] integerValue]];
label_7.text = [NSString stringWithFormat:@"%ld", (long)[number_sorted[6] integerValue]];
break;
case 8:
label_1.text = [NSString stringWithFormat:@"%ld", (long)[number_sorted[0] integerValue]];
label_2.text = [NSString stringWithFormat:@"%ld", (long)[number_sorted[1] integerValue]];
label_3.text = [NSString stringWithFormat:@"%ld", (long)[number_sorted[2] integerValue]];
label_4.text = [NSString stringWithFormat:@"%ld", (long)[number_sorted[3] integerValue]];
label_5.text = [NSString stringWithFormat:@"%ld", (long)[number_sorted[4] integerValue]];
label_6.text = [NSString stringWithFormat:@"%ld", (long)[number_sorted[5] integerValue]];
label_7.text = [NSString stringWithFormat:@"%ld", (long)[number_sorted[6] integerValue]];
label_8.text = [NSString stringWithFormat:@"%ld", (long)[number_sorted[7] integerValue]];
break;
case 9:
label_1.text = [NSString stringWithFormat:@"%ld", (long)[number_sorted[0] integerValue]];
label_2.text = [NSString stringWithFormat:@"%ld", (long)[number_sorted[1] integerValue]];
label_3.text = [NSString stringWithFormat:@"%ld", (long)[number_sorted[2] integerValue]];
label_4.text = [NSString stringWithFormat:@"%ld", (long)[number_sorted[3] integerValue]];
label_5.text = [NSString stringWithFormat:@"%ld", (long)[number_sorted[4] integerValue]];
label_6.text = [NSString stringWithFormat:@"%ld", (long)[number_sorted[5] integerValue]];
label_7.text = [NSString stringWithFormat:@"%ld", (long)[number_sorted[6] integerValue]];
label_8.text = [NSString stringWithFormat:@"%ld", (long)[number_sorted[7] integerValue]];
label_9.text = [NSString stringWithFormat:@"%ld", (long)[number_sorted[8] integerValue]];
break;
case 10:
label_1.text = [NSString stringWithFormat:@"%ld", (long)[number_sorted[0] integerValue]];
label_2.text = [NSString stringWithFormat:@"%ld", (long)[number_sorted[1] integerValue]];
label_3.text = [NSString stringWithFormat:@"%ld", (long)[number_sorted[2] integerValue]];
label_4.text = [NSString stringWithFormat:@"%ld", (long)[number_sorted[3] integerValue]];
label_5.text = [NSString stringWithFormat:@"%ld", (long)[number_sorted[4] integerValue]];
label_6.text = [NSString stringWithFormat:@"%ld", (long)[number_sorted[5] integerValue]];
label_7.text = [NSString stringWithFormat:@"%ld", (long)[number_sorted[6] integerValue]];
label_8.text = [NSString stringWithFormat:@"%ld", (long)[number_sorted[7] integerValue]];
label_9.text = [NSString stringWithFormat:@"%ld", (long)[number_sorted[8] integerValue]];
label_10.text = [NSString stringWithFormat:@"%ld", (long)[number_sorted[9] integerValue]];
break;
case 11:
label_1.text = [NSString stringWithFormat:@"%ld", (long)[number_sorted[0] integerValue]];
label_2.text = [NSString stringWithFormat:@"%ld", (long)[number_sorted[1] integerValue]];
label_3.text = [NSString stringWithFormat:@"%ld", (long)[number_sorted[2] integerValue]];
label_4.text = [NSString stringWithFormat:@"%ld", (long)[number_sorted[3] integerValue]];
label_5.text = [NSString stringWithFormat:@"%ld", (long)[number_sorted[4] integerValue]];
label_6.text = [NSString stringWithFormat:@"%ld", (long)[number_sorted[5] integerValue]];
label_7.text = [NSString stringWithFormat:@"%ld", (long)[number_sorted[6] integerValue]];
label_8.text = [NSString stringWithFormat:@"%ld", (long)[number_sorted[7] integerValue]];
label_9.text = [NSString stringWithFormat:@"%ld", (long)[number_sorted[8] integerValue]];
label_10.text = [NSString stringWithFormat:@"%ld", (long)[number_sorted[9] integerValue]];
label_11.text = [NSString stringWithFormat:@"%ld", (long)[number_sorted[10] integerValue]];
break;
default:
break;
}
谢谢你抽出时间，丹。
最佳答案
另一种选择是使用 switch 语句的“fall through”属性
switch ([number_sorted count]) {
case 11:
label_11.text = [NSString stringWithFormat:@"%ld", (long)[number_sorted[10] integerValue]];
case 10:
label_10.text = [NSString stringWithFormat:@"%ld", (long)[number_sorted[9] integerValue]];
case 9:
label_9.text = [NSString stringWithFormat:@"%ld", (long)[number_sorted[8] integerValue]];
case 8:
label_8.text = [NSString stringWithFormat:@"%ld", (long)[number_sorted[7] integerValue]];
case 7:
label_7.text = [NSString stringWithFormat:@"%ld", (long)[number_sorted[6] integerValue]];
case 6:
label_6.text = [NSString stringWithFormat:@"%ld", (long)[number_sorted[5] integerValue]];
case 5:
label_5.text = [NSString stringWithFormat:@"%ld", (long)[number_sorted[4] integerValue]];
case 4:
label_4.text = [NSString stringWithFormat:@"%ld", (long)[number_sorted[3] integerValue]];
case 3:
label_3.text = [NSString stringWithFormat:@"%ld", (long)[number_sorted[2] integerValue]];
case 2:
label_2.text = [NSString stringWithFormat:@"%ld", (long)[number_sorted[1] integerValue]];
case 1:
label_1.text = [NSString stringWithFormat:@"%ld", (long)[number_sorted[0] integerValue]];
default:
break;
}
关于ios - 太多样板代码 switch 语句 - iOS，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/23723211/
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