result_question.rs

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loop_while_let.rs

if_let.rs

iterator_map.rs

result_question.rs

struct_impl.rs

match_pattern.rs

closure.rs

trait_impl.rs

hashmap_insert.rs

string_format.rs

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result_question.rs

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fn process() -> Result<String, Error> {↵

let data = read_file()?;↵

Ok(data.trim().to_string())↵

}

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関連する練習問題

loop_while_let.rs if_let.rs iterator_map.rs struct_impl.rs match_pattern.rs closure.rs