如何在Go中等待命令行输入

Question

I want to display a "> ", and then have the program wait for the user to type something into the command line and hit enter (and ultimately store that as a byte slice). In Java I would have done something like:

Scanner scanner = new Scanner(System.in);

System.out.print("> ");
String sentence = scanner.nextLine();

I've tried some things involving os.Args, console.ReadBytes(' '), and bufio.NewReader(os.Stdin), but I still haven't figured it out. Any suggestions would be greatly appreciated. Thanks.

Answer 1

Some Go code would have probably been helpful so I could tell you what you did wrong. But here is how you would do this in Go:

package main

import (
    "bufio"
    "fmt"
    "os"
)

func main() {
    buf := bufio.NewReader(os.Stdin)
    fmt.Print("> ")
    sentence, err := buf.ReadBytes('
')
    if err != nil {
        fmt.Println(err)
    } else {
        fmt.Println(string(sentence))
    }
}