rust-course/rustlings-zh/exercises/move_semantics/move_semantics2.rs

// move_semantics2.rs
// 在不更改第 13 行的要求下通过编译！
// 执行 `rustex hint move_semantics2` 获取提示 :)

// I AM NOT DONE

fn main() {
    let vec0 = Vec::new();

    let mut vec1 = fill_vec(vec0);

    // 不要更改下面那行！
    println!("{} has length {} content `{:?}`", "vec0", vec0.len(), vec0);

    vec1.push(88);

    println!("{} has length {} content `{:?}`", "vec1", vec1.len(), vec1);
}

fn fill_vec(vec: Vec<i32>) -> Vec<i32> {
    let mut vec = vec;

    vec.push(22);
    vec.push(44);
    vec.push(66);

    vec
}