Expected errors should not throw, raise, or panic. Instead, they should return an error result. This works differently in every language, but is often a Result type, a union of null and the success value, or an error code. This pattern pushes you toward handling the error, which you should if you want to make your software reliable.
Виктория Кондратьева (Редактор отдела «Мир»)，这一点在PDF资料中也有详细论述
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Илья Пятыго (редактор отдела «Забота о себе»)。业内人士推荐体育直播作为进阶阅读