跨平台应用开发的最佳实践：掌握Go语言的技巧和策略

package main

import (
    "fmt"
    "os"
)

func main() {
    file, err := os.Open("filename.txt")
    if err != nil {
        fmt.Println("Failed to open the file:", err)
        return
    }
    defer file.Close()

    data := make([]byte, 1024)
    count, err := file.Read(data)
    if err != nil {
        fmt.Println("Failed to read the file:", err)
        return
    }

    fmt.Println("Read", count, "bytes:", string(data))
}

package main

import (
    "fmt"
    "runtime"
)

func main() {
    var separator string
    if runtime.GOOS == "windows" {
        separator = "\"
    } else {
        separator = "/"
    }

    fmt.Println("Path separator:", separator)
}

GOOS=windows GOARCH=amd64 go build -o app.exe main.go

package main

import (
    "fmt"
    "net/http"
)

func main() {
    resp, err := http.Get("https://www.example.com")
    if err != nil {
        fmt.Println("Failed to send request:", err)
        return
    }
    defer resp.Body.Close()

    fmt.Println("Response status:", resp.Status)
}