rust模式和匹配
文章目录
- match 分支
- 参考
match 分支
所有结果都得匹配到
// Match Expression
fn main() {
#[derive(Debug)]
enum Language {
English,
Spanish,
Russian,
Japanese,
}
let language = Language::English;
match language {
Language::English => println!("Hello World!"),
Language::Spanish => println!("Hola Mundo!"),
Language::Russian => println!("npuBeT, Mnp!"),
//_=> println!("Unsupported language!"),
lang => println!("Unsupported language! {:?}", lang),
}
}
参考
- 第18章～模式和匹配