rust 随机数字
use rand::prelude::*; fn main() { let secret = rand::thread_rng().gen_range(0..101); println!("神秘数字是：{}", secret); }
rust 命令行接收输入并输出
use std::cmp::Ordering;use std::io; fn main() { println!("请输入路径："); let mut guess = String::new(); io::stdin().read_line(&mut guess).expect("读取异常"); println!("您输入的是：{}", guess); }
rust 创建多层文件夹
use std::fs; fn main() -> std::io::Result<()> { // 创建文件夹 fs::create_dir("setting")?; // 一次创建多级文件夹 fs::create_dir_all("setting/myapp/networksettings")?; Ok(()) }
rust 操作文本 写入 读取 追加
use std::fs; use std::io::{self, Write}; //文件创建/导入 // 写入 fn open() -> std::io::Result<()> { let mut file = fs::File::create("textfile.txt")?; file.write_all(b"New file content\n")?; Ok(()) } // 读取 fn read() -> std::io::Result<()> { let mut ...
js 录音文本报价计算
<div class="pc div1"> 您的内容包含： 数字：<span class="js-spn">0</span>个 英文：<span class="js-spn">0</span>个 汉字：<span class="js-spn">0&l...
rust UdpSocket 通信
use std::net::UdpSocket; use std::str; fn main() -> std::io::Result<()> { let remote_addr = "localhost:8888"; let socket = UdpSocket::bind("localhost:0")?; println!("Sending to the server"); socket.send_to("Hello from client".as_b...
rust 复制文本文件
use std::env; use std::fs::File; use std::io; fn main() -> io::Result<()> { let args: Vec<_> = env::args().collect(); let src = &args[1]; let dest = &args[2]; let mut file = File::open(src)?; let mut new_file = File::create(dest)?; io::copy(&...
rust 创建zip压缩包并写入文本
use std::fs::File; use std::io; use std::io::Write; fn main() -> io::Result<()> { let file = File::create("file.zip")?; let mut zip = zip::ZipWriter::new(file); zip.start_file("file.txt", zip::write::FileOptions::default())?; zip.write_all(b"zip...
rust写个简单爬虫
Cargo.toml 配置[dependencies] scraper = "0.12.0" reqwest = { version = "0.11.10", features = ["blocking", "json"] } surf = "2.3.2" tokio = { version = "1.17.0", features = ["full"] } futures = "0.3.21" main.rs代码use fu...
rust 逐行读取文本
use std::io::prelude::*; use std::fs::File; use std::io::BufWriter; use std::io::BufReader; fn main() { let file = File::open("./ico.txt").unwrap(); let mut fin = BufReader::new(file); for line in fin.lines() { println!("{}", line.unwrap()); } }
Rust Cargo 指定国内镜像
参考https://huangjj27.gitlab.io/posts/rust-mirrorhttps://doc.rust-lang.org/cargo/reference/source-replacement.htmlhttps://lug.ustc.edu.cn/wiki/mirrors/help/rust-crateshttps://github.com/rustcc/lernaean-deploy如当前用户目录为/root 项目目录为/root/rust-test 则在 /root/.cargo 目录或 /root/rust-test/.cargo 目录 创建文件config...
