环境
- Time 2022-12-02
- WSL-Ubuntu 22.04
- CLAP 4.0.29
前言
说明
参考：https://docs.rs/clap/latest/clap/index.html
目标
统计参数出现的次数。
Cargo.toml
[package]
edition = "2021"
name = "game"
version = "1.0.0"[dependencies]
clap = {version = "4", features = ["cargo"]}
main.rs
use clap::{command, Arg};fn main() {let matches = command!().arg(Arg::new("debug").short('d').long("debug").help("调试信息").action(clap::ArgAction::Count),).get_matches();println!("输入的参数数量是: {}", matches.get_count("debug"));
}
查看帮助
root@jiangbo12490:~/git/game/target/release# ./game -h
Usage: game [OPTIONS]Options:-d, --debug... 调试信息-h, --help Print help information-V, --version Print version information
使用
root@jiangbo12490:~/git/game/target/release# ./game -d --debug -d
输入的参数数量是: 3
总结
统计参数出现的次数。