js打破循环
The cert guide is maybe not 100% clear on the question of breaking out of a loop, but you can break and continue in all types of loops - for, while and foreach (the latter wasn't mentioned in the loops section of the book).
CERT的指导，也许是一个环路上的突破的问题不是100％清楚，但你可以break ，并continue在所有类型的循环- for ， while和foreach (后者在书的环路部分没有提到)。
About the continue when in nested loops. Well, it is true that you can do < ?php for ($i = 0; $i < 10; $i++){ for ($j = 0; $j < 10; $j++){ if ($i % 2) { continue 2; } } // this line will be executed 5 times // and will write 0 2 4 6 8 echo $i; } ?> Or you can just continue or continue 1, rather than continue 2, like this < ?php for ($i = 0; $i < 10; $i++){ for ($j = 0; $j < 10; $j++){ if ($i % 2) { continue; } } // this line will be executed 10 times // and will write 0 1 2 3 4 5 6 7 8 9 echo $i; } ?>
关于嵌套循环中的continue。 好吧，的确可以做到<？php for($ i = 0; $ i <10; $ i ++){for($ j = 0; $ j <10; $ j ++){if($ i％2 ){继续2; }} //此行将执行5次// //写入0 2 4 6 8 echo $ i; }？>或者您可以continue或continue 1 ，而不是continue 2 ，例如<？php for($ i = 0; $ i <10; $ i ++){for($ j = 0; $ j <10; $ j ++){如果($ i％2){继续； }} //此行将被执行10次//并将写入0 1 2 3 4 5 6 7 8 9 echo $ i; }？>
So yes, it is possible, but to me, these continue 2, continue 3 and so on can only cause confusion and make the code harder to follow. If I find myself in situation where I write continue 2, I would seriously think about restructuring this particular piece of logic.
所以是的，这是可能的，但是对我来说，这些continue 2 ， continue 3等等只会造成混乱并使代码难以遵循。 如果我发现自己在写continue 2情况下，我会认真考虑重组这一特定逻辑。
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js打破循环