Rust编程知识拾遗：Rust 编程，读取命令行参数

视频地址

头条地址：https://www.ixigua.com/i6765442674582356483

Ｂ站地址：https://www.bilibili.com/video/av78062009?p=1

github地址

​​github地址​​

获取命令行参数

use std::env;

fn main() {
    let args: Vec<String> = env::args().collect();
    println!("{:?}", args);
}      

use std::env;

fn main() {
    let args: Vec<String> = env::args().collect();
    println!("size = {}", args.len());
    for argument in args {
        println!("{}", argument);
    }
}      

将参数值保存进变量

use std::env;

fn main() {
    let args: Vec<String> = env::args().collect();
    println!("size = {}", args.len());

    let a = &args[1];
    println!("a = {}", a);
    let b = &args[2];
    println!("b = {}", b);
}