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试捕区的位置是否影响到性能?
原标题:Does the placement of a try-catch block affect performance?

试捕区的位置是否影响到性能?

页: 1 中间

while (true) {
    try {
        // ... read from a file
    } catch (EOFException e) {
        break;
    }
}

EXAMPLE2:审判渔获区 中间

try {
    while (true) {
        // ... read from a file
    } 
} catch (EOFException e) {
    // :P
}

从逻辑上讲,这两个例子都是一样的,但我是否喜欢?

问题回答

无论间接费用(<代码>>-副渔获物/代码>)的发生如何,都可能微不足道,但提请我更多注意第一种情况是,它会产生误导性:你重新捕获一个例外,只是为了避开 lo。 我选择了解决办法2,因为它符合意图。 你们避免了这种方式的任何间接费用。

您的捕获物的位置对您的申请的执行没有任何影响。 即便如此,这完全可以忽略不计,这并非是你想要指导你的能源。 先根据需要实施,然后优化。 捐赠微型产品。

你们能否从外走? 我不认为你的先言,即二者都是一样的。

我的直观告诉我,游乐场外的尝试/捕获物较好。 如果通过书写方式产生异常编码的影响,则产生较少的尝试/渔获量就更好。 除非发生例外,否则无影响,否则就无影响。 我看不出,在什么情况下,内部有审判/捕获物会更好。

我会错......

第二个例子(海滨区 环绕<>>)。 该守则既较快又清晰。





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