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                                            zhilei Qiu

Rustlings advanced_errs2测试是否不够严谨

> ```Rust //match这样写也可以通过测试 let (city, year, temp) = match &v[..] { [_] => return Err(ParseClimateError::Empty), ["",_,_]=> return Err(ParseClimateError::NoCity), [city, year, temp] =>(city.to_string(), year, temp), _ => return Err(ParseClimateError::BadLen), };...

Rustlings advanced_errs2测试是否不够严谨

```Rust //这是写的那个 from_str fn from_str(s: &str) -> Result { let v: Vec = s.split(',').collect(); let (city, year, temp) = match &v[..] { [""] => return Err(ParseClimateError::Empty), ["",_,_]=> return Err(ParseClimateError::NoCity), [city,...