rust 线程演示
use std::thread; use std::time::Duration; fn main() { let handle = thread::spawn(|| { for i in 1..10 { println!("hi number {} from the spawned thread!", i); ...
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");...
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")?...
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 ...
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")?; ...
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]; ...
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...
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 ...
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(...
