for input.Scan 停不下来了

[wangduanduan]

• macos 输入Ctrl-D来停止Scan
• windows 输入Ctrl-Z来停止Scan

Ctrl-D并不是退出进程，只是用来输入EOL

func main() {
    // 定义一个map类型的变量
    counts := make(map[string]int)
    input := bufio.NewScanner(os.Stdin)

    for input.Scan() {
        counts[input.Text()]++
    }

    for line, n := range counts {
        if n > 1 {
            fmt.Println("%d\t%s\n", n, line)
        }
    }
}

参考

• https://stackoverflow.com/questions/34481065/break-out-of-input-scan