README.md

tomgs-rust

Rust learning record

创建项目

cd tomgs-rust
cargo new [项目名称]

添加测试

1、先编写测试文件

#[cfg(test)]
mod tests {

    #[test]
    fn test_match_mod() {
        let x: u32 = 3;
        match x {
            0 => println!("x = 0"),
            1 | 2 => println!("1 <= x <= 2"),
            3 | 4 | 5 => println!("3 <= x <= 5"),
            _ => println!("x > 5"),
        }
    }
}

2、然后再在lib.rs当中引入mod

mod pattern_match_test;