package main

import (
    "fmt"
)

type Container interface {
    type() string
}

type IntContainer struct {
    value int
}

func (ic IntContainer) type() string {
    return "int"
}

type StringContainer struct {
    value string
}

func (sc StringContainer) type() string {
    return "string"
}

func printValue(c Container) {
    switch c.type() {
    case "int":
        fmt.Println("Integer value:", c.(IntContainer).value)
 Go语言的问题及解决方案    case "string":
        fmt.Println("String value:", c.(StringContainer).value)
    }
}

func main() {
    intC := IntContainer{value: 10}
    stringC := StringContainer{value: "Hello"}

    printValue(intC)
    printValue(stringC)
}