从控制台读取多字字符串

Question

I realized that the following only reads a single word string -

fmt.Scan(&sentence)

How do I read multi word string - as in, the string sentence should store a string that contains multiple words.

Answer 1

Your question refers to scanning space separated input. The definition of fmt.Scan https://golang.org/pkg/fmt/#Scan states:

Scan scans text read from standard input, storing successive space-
separated values into successive arguments. Newlines count as space.
It returns the number of items successfully scanned. If that is less
than the number of arguments, err will report why.

So, by definition, input is scanned up until the first space is found. To scan, let's say until you hit a on the command line you can use the code from the comment scanning spaces from stdin in Go:

scanner := bufio.NewScanner(os.Stdin)
for scanner.Scan() {
    return scanner.Text()
}
if err := scanner.Err(); err != nil {
    fmt.Fprintln(os.Stderr, "reading standard input:", err)
}

Also this thread might be useful: https://groups.google.com/forum/#!topic/golang-nuts/r6Jl4D9Juw0