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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.。业内人士推荐Line官方版本下载作为进阶阅读
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const DATA: &[u8] = include_bytes!("../data/tables.db");