subcommand( Command::new("sub1") .arg(Arg::new("sub1_sub").long("sub1_sub")) ) .get_matches(); if let Some(sub_cmd) = args.subcommand_matches("sub1") { println!("{:?}", sub_cmd.get_one::<String>("sub1_sub")); } } /* clap-demo \ --level1 some_param \ sub1 ...
#[command(subcommand)] allows parsing into the Commands enum. 3. Handling Subcommands: A match block processes each subcommand. Run Examples: Code: cargo run -- add "New Item" Output: Adding item: New Item cargo run -- remove --id 42 Removing item with ID: 42 Advanced Features of Cla...
use std::path::PathBuf; use clap::{arg,command, value_parser, ArgAction, Command}; fntest() { letmatches =command!() // requires `cargo` feature .arg(arg!([name]"Optional name to operate on")) .arg( arg!( -c --config <FILE>"Sets a custom config file" ) // We don't have...
use clap::{Arg, ArgMatches, Command}; use chrono::{Local, TimeZone}; use urlencoding::{decode, encode}; fn main() { let matches = Command::new("my_dev_tool") .version("1.0") .author("Your Name <your.email@example.com>") .about("Developer's tool for urlencode and time format...
} else if let Some(_) = matches.subcommand_matches("列出") { list().await?; } Ok(()) } 一行行来看吧! 导入库和本地模块: 使用clap 包中的 Arg 和 Command 模块; 使用commands 包中的 add、error 下的 AppError、list 和 remove 函数。
match match cli_arg.subcommand { CLISubcommand::Server => start_server(socket_address), CLISubcommand::Client => start_client(socket_address), } { Ok(_) => { println!("Program exited successfully"); } Err(error) => { println!("Program exited with an error: {}", error); ...
接下来,我们使用clap库来解析命令行参数,实现不同的命令。 代码语言:rust AI代码解释 fn main() { let matches = App::new("Todo CLI") .version("1.0") .author("Your Name <your.email@example.com>") .about("A simple command-line Todo application written in Rust") .subcommand( App::new("...
use clap::{Arg, ArgMatches, Command}; use chrono::{Local, TimeZone}; use urlencoding::{decode, encode}; fn main() { let matches = Command::new("my_dev_tool") .version("1.0") .author("Your Name <your.email@example.com>") ...
Clap是一个Rust编程语言中广泛使用的命令行参数解析器库。而ArgMatches则是Clap库中的一个结构体,用于存储解析后的命令行参数信息。 惯用的Rust方法通常包括以下几个步骤: 1. ...
因此只有一个标题。它显示了所有可用的子命令。你可以用subcommand_help_heading来设置这个头文件，所以...