mirror of https://github.com/sunface/rust-course
在学习章节 `2.11.2. 返回值 Result 和?` 时遇到一个新的match用法,之前没有提到过,所以在这里加上。 https://course.rs/basic/result-error/result.html#%E5%AF%B9%E8%BF%94%E5%9B%9E%E7%9A%84%E9%94%99%E8%AF%AF%E8%BF%9B%E8%A1%8C%E5%A4%84%E7%90%86pull/1202/head
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