go区分操作系统

package main

import (
    "fmt"
    "runtime"
)

func main()  {

    fmt.Println("Go runs on")
    switch os:=runtime.GOOS;os {
    case "darwin":
        fmt.Println("OS x.")
    case "linux":
        fmt.Println("Linux.")
    default:
        //其他系统
        fmt.Printf("%S.\n",os)
        
    }
}
package main

import (
    "fmt"
    "runtime"