相关疑难解决方法(0)

锈:打印!宏直到按 Enter 才执行

我正在研究 Rust,在做猜谜游戏时,我发现了这种奇怪的行为:

use std::io;

fn main() {
    println!("Welcome!");

    let mut input = String::new();
    print!("Please type something:"); // this line is not printed UNTIL the Enter key is pressed
    io::stdin()
        .read_line(&mut input)
        .expect("Failed to read input!");

    println!("Bye!");
}
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发生以下情况:

  1. Welcome! 被打印
  2. Please type something: 不打印
  3. 如果您输入一些文本并按 Enter,您将看到您的文本后跟 Please type something:Bye!

如何将消息打印到标准输出并将输入打印在同一行上?

例如:

Please enter your name:
(user types Chuck Norris)
Please enter your name: Chuck Norris
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rust

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