Function parse_daily_to_structs_in_range 

pub fn parse_daily_to_structs_in_range(
    path: impl AsRef<Path>,
    start: Option<NaiveDate>,
    end: Option<NaiveDate>,
) -> Result<Vec<DailyKlineData>, DailyParseError>

按 typed 日期范围解析日线文件为结构体。