下面是运行终端命令的模拟代码：

#[derive(Debug)]
pub struct Keymap {
    pub key: char,
    pub command: String,
}

impl Keymap {
    pub fn new<S: AsRef<str>>(key: char, command: S) -> Self {
        let command = command.as_ref().to_owned();

        Self {
            key,
            command,
        }
    }
}

fn handle_keymap(keymap: &Keymap) {
    println!("Do something with the keymap: {:?}", keymap);

    run_command(keymap.command);
}

fn run_command(command_string: String) {
    let command_string = command_string.replace("test", "best");

    println!("Running this command: {:?}", command_string);
}

fn main() {
    let keymap = vec![Keymap::new('t', "echo 'test'")].into_iter().next().unwrap();

    handle_keymap(&keymap);
}

字符串
Rust Playground
现在，这里有一个错误：

error[E0507]: cannot move out of `keymap.command` which is behind a shared reference
  --> src/main.rs:21:17
   |
21 |     run_command(keymap.command);
   |                 ^^^^^^^^^^^^^^ move occurs because `keymap.command` has type `String`, which does not implement the `Copy` trait

型
可以用clone()来解决：

run_command(keymap.command.clone());

型
有别的解决办法吗？我认为像这样使用clone()不是一个好的做法。