# 生成一个随机数
# 完整代码
- 导入依赖
[package]
name = "guessing_game"
version = "0.1.0"
edition = "2021"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies]
rand = "0.8.3"
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- 编写代码
// ANCHOR: all
use std::io;
// ANCHOR: ch07-04
use rand::Rng;
fn main() {
// ANCHOR_END: ch07-04
println!("Guess the number!");
// 获取随机数
let secret_number = rand::thread_rng().gen_range(1..101);
// 打印生成的随机数
println!("The secret number is: {}", secret_number);
// 请输入你猜的数字
println!("Please input your guess.");
let mut guess = String::new();
io::stdin()
.read_line(&mut guess)
.expect("Failed to read line");
// 打印 输入的数字
println!("You guessed: {}", guess);
}
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# 运行代码
