string - 如何使用 fmt.scanln 从以空格分隔的字符串中读取

Question

想要“30 of month”却得到“30”

package main

import "fmt"

func main() {
    var s string
    fmt.Scanln(&s)
    fmt.Println(s)
    return
}

$ go run test.go
31 of month
31

Scanln is similar to Scan, but stops scanning at a newline and after the final item there must be a newline or EOF.

Answer 1

fmt Scan 系列扫描以空格分隔的标记。

package main

import (
    "fmt"
)

func main() {
    var s1 string
    var s2 string
    fmt.Scanln(&s1,&s2)
    fmt.Println(s1)
    fmt.Println(s2)
    return
}

你可以试试bufio扫描

package main
import (
    "bufio"
    "fmt"
    "os"
)

func main() {
    scanner := bufio.NewScanner(os.Stdin)
    for scanner.Scan() {
        s := scanner.Text()
        fmt.Println(s)
    }
    if err := scanner.Err(); err != nil {
        os.Exit(1)
    }
}