let content = std::fs::read_to_string(&args.path).expect("无法读取文件"); for line in content.lines() { if line.contains(&args.pattern) { println!("{}", line); } } } 试一试:cargo run -- main src/main.rs现在应该可以工作了! 上面的代码,虽然能满足我们的业务需求,但是还不够完美。
Rust是一种系统级编程语言,它注重安全性、并发性和性能。在Rust中,使用标准库中的`std::io::stdin`模块来接受用户的输入,而不是使用`read_line`方法。 要正确接受输入,可...
usestd::fs::File;usestd::io::{BufReader,BufRead};fn read_file_line_by_line(path:&str)->Result<(),Box<dyn std::error::Error>>{ letfile=File::open(path)?;let reader=BufReader::new(file);forlineinreader.lines(){matchline {// line是字符串Ok(line)=>process_line(line),Err(err)...
read_line(&mut buf) .expect("reading from cursor won't fail"); assert_eq!(num_bytes, 4); assert_eq!(buf, "foo\n"); buf.clear(); // cursor is at 'b' let num_bytes = cursor.read_line(&mut buf) .expect("reading from cursor won't fail"); assert_eq!(num_bytes, 3); ...
StructOpt parses command line arguments by defining a struct. It combines clap with custom derive. clap or Command Line Argument Parser is a simple-to-use, efficient, and fully-configurable library for parsing command line arguments. Gtk-rs is Rust bindings for GTK+ 3, Cairo, GtkSourceView ...
use std::fs::File;use std::io::{BufReader, BufRead}; fn main() -> std::io::Result<()> {let file = File::open('file1.txt')?;let reader = BufReader::new(file); forlineinreader.lines() {println!('{}', line?);}Ok(())} ...
第一行是request line,它带有客户端想请求的东西的信息。 然后这个request line还可以分割成几部分: method,请求的方式,比如GET、POST等,我们用的GET,一般意味着向服务器请求数据信息。 请求的URI,也就是Uniform Resource Identifier, 翻译过来即统一资源标识符。也就是什么资源客户端想要的。这里插一嘴和它挺像的...
Baseline.Rust by zaitt.works. Hello Rust! Choosing Rust — Clint Frederickson Clint shares Iron his experience with choosing Rust and why it might be the right choice for your next project. Rust播客 The Rustacean Station Podcast 是一个为Rust编程语言创建播客内容的社区项目。
stdin().read_line(&mut input).unwrap(); let target: u32 = input.trim().parse::().unwrap(); let target = target.to_ne_bytes(); //存储位置数组 let mut locations = Vec::new(); for region in regions { match process.read_memory(region.BaseAddress as _, region.RegionSize){ ...
这个项目是书本Command-Line Rust(O'Reily)的配套项目，可以帮助大家理解该如何更好的编写命令行程序，...