let cmd_line=std::env::args(); println!("No of elements in arguments is :{}",cmd_line.len()); //通过的元素总数 let mut sum=0; let mut has_read_first_arg=false; //遍历所有参数并计算它们的总和 for arg in cmd_line { if has_read_first_arg { //跳过第一个参数,因为它是 exe ...
Many tools, such as gcc and gnu-ld, support "args files" - that is, being able to specify @file on the command line. Implemented in #63175 This implements a straightforward form where each argument is on a separate line in a text file. This allows for everything except for arguments ...
let args = Cli::parse(); let content = std::fs::read_to_string(&args.path) .with_context(|| format!("无法读取文件`{}`", args.path.display()))?; find_matches(&content, &args.pattern, &mut std::io::stdout()); Ok(()) } fn find_matches(content: &str, pattern: &str, mut...
( "port not in range {}-{}", PORT_RANGE.start(), PORT_RANGE.end() )) } } ``` ## 2.13 参数关系 ``` use clap::{Args, Parser}; #[derive(Parser)] #[command(author, version, about, long_about = None)] struct Cli { #[command(flatten)] vers: Vers, /// some regular input...
#[command(author, version, about, long_about = None)] // Read from `Cargo.toml` struct Cli { #[arg(long)] two: String, #[arg(long)] one: String, } fn main() { let cli = Cli::parse(); println!("two: {:?}", cli.two); ...
about("This the intro of the cli application") // Application args .arg(arg!([NAME]).help("Specify your name")) .arg( Arg::new("age").short('a').long("age").value_parser(value_parser!(u8)) ) .get_matches(); // Read and parse command args if let Some(name) = matches....
:Duration;#[derive(Parser)]struct Cli{/// 要查找的模式pattern:String,/// 要读取的文件的路径path:PathBuf,}fnmain()->Result<()>{letargs=Cli::parse();// 打开文件并创建一个 BufReader 来逐行读取letfile=File::open(&args.path).with_context(||format!("无法打开文件 {:?}",&args.path))...
#[command(author, version, about, long_about = None)] // Read from `Cargo.toml` struct Cli { #[arg(long)] two: String, #[arg(long)] one: String, } fnmain() { letcli = Cli::parse(); println!("two: {:?}", cli.two); ...
use anyhow::{Context, Result};use clap::Parser;use std::path::PathBuf;#[derive(Parser)]struct Cli {/// 要查找的模式pattern: String,/// 要读取的文件的路径path: PathBuf,}fn main() -> Result<()> {let args = Cli::parse();let content = std::fs::read_to_string(&args.path).with...
whitfin/bytelines [bytelines] - Read input lines as byte slices for high efficiency. whitfin/runiq - an efficient way to filter duplicate lines from unsorted input. xsv - A fast CSV command line tool (slicing, indexing, selecting, searching, sampling, etc.) Utilities 1History - Command ...