Rust中的Vector类型

Posted 2022-08-21 aguncn

常用类型操作，

如python中的list,turple,dictory等，

更方常编程常用数据的处理。

fn main() 
    let v = vec![1, 2, 3, 4, 5];
    
    let third: &i32 = &v[2];
    println!("The third element is ", third);

    match v.get(2) 
    Some(third) => println!("The element is ", third),
        None => println!("There is no element"),
    

    match v.get(20) 
        Some(twenty) => println!("The element is ", twenty),
        None => println!("There is no element"),