英文:
How to wait for command line input in Go
问题
我想显示一个“>”，然后让程序等待用户在命令行中输入并按下回车键（最终将其存储为字节切片）。在Java中，我会这样做：
Scanner scanner = new Scanner(System.in);
System.out.print("> ");
String sentence = scanner.nextLine();
我尝试过一些涉及os.Args、console.ReadBytes('\n')和bufio.NewReader(os.Stdin)的方法，但我还没有弄清楚。如果有任何建议，将不胜感激。谢谢。
英文:
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('\n'), and bufio.NewReader(os.Stdin), but I still haven't figured it out. Any suggestions would be greatly appreciated. Thanks.
答案1
得分: 11
以下是Go代码的中文翻译：
package main
import (
"bufio"
"fmt"
"os"
)
func main() {
buf := bufio.NewReader(os.Stdin)
fmt.Print("> ")
sentence, err := buf.ReadBytes('\n')
if err != nil {
fmt.Println(err)
} else {
fmt.Println(string(sentence))
}
}
希望这个翻译对你有帮助！
英文:
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('\n')
if err != nil {
fmt.Println(err)
} else {
fmt.Println(string(sentence))
}
}
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