14.2.6. 用 Serde 将记录序列化为 CSV
下面的实例展示如何使用 serde crate 将自定义结构体序列化为 CSV 记录。
use error_chain::error_chain; use serde::Serialize; use std::io; error_chain! { foreign_links { IOError(std::io::Error); CSVError(csv::Error); } } #[derive(Serialize)] struct Record<'a> { name: &'a str, place: &'a str, id: u64, } fn main() -> Result<()> { let mut wtr = csv::Writer::from_writer(io::stdout()); let rec1 = Record { name: "Mark", place: "Melbourne", id: 56}; let rec2 = Record { name: "Ashley", place: "Sydney", id: 64}; let rec3 = Record { name: "Akshat", place: "Delhi", id: 98}; wtr.serialize(rec1)?; wtr.serialize(rec2)?; wtr.serialize(rec3)?; wtr.flush()?; Ok(()) }