1. Cargo.toml

[dependencies]
signal-hook = "0.3.14"

2. src/main.rs

use std::{thread, time::Duration};
use signal_hook::consts::SIGINT;


fn main() -> Result<(), Box<dyn std::error::Error>> {
    let mut signals = signal_hook::iterator::Signals::new(&[SIGINT])?;
    println!("please press ctrl-c");
    thread::spawn(move || {
        for signal in signals.forever() {
            println!("received signal {signal:?}");
        }
    });
    thread::sleep(Duration::from_secs(10));
    Ok(())
}

3. 测试

在终端执行：

cargo run

待屏幕输出 “please press ctrl-c” 后，按 Control + C 多次。将得到类似下面的输出：

please press ctrl-c
^Creceived signal 2
^Creceived signal 2
^Creceived signal 2
^Creceived signal 2
^Creceived signal 2