14.2.2. 读取有不同分隔符的 CSV 记录
使用制表(tab)分隔符 delimiter
读取 CSV 记录。
use csv::Error; use serde::Deserialize; #[derive(Debug, Deserialize)] struct Record { name: String, place: String, #[serde(deserialize_with = "csv::invalid_option")] id: Option<u64>, } use csv::ReaderBuilder; fn main() -> Result<(), Error> { let data = "name\tplace\tid Mark\tMelbourne\t46 Ashley\tZurich\t92"; let mut reader = ReaderBuilder::new().delimiter(b'\t').from_reader(data.as_bytes()); for result in reader.deserialize::<Record>() { println!("{:?}", result?); } Ok(()) }