Go语言中检测用户管理员权限：操作系统层面的考量与实践

package main

import (
    "fmt"
    "os"
    "syscall" // For Windows specific functions
)

// IsAdministrator checks if the current user has administrator privileges on Windows.
// It returns true if the user is an administrator, false otherwise.
// On non-Windows systems, it will always return false.
func IsAdministrator() bool {
    // This function is specific to Windows.
    // On other OS, we might consider other checks like UID 0 for root.
    // For simplicity, this example focuses on Windows.

    // Try to use windows.IsUserAnAdmin() if available
    // Note: For older Go versions or specific environments,
    // you might need to import "golang.org/x/sys/windows" explicitly.
    // For modern Go, syscall can often bridge to this.

    // A more robust way using golang.org/x/sys/windows
    // if we don't want to rely on syscall directly for IsUserAnAdmin
    // import "golang.org/x/sys/windows"
    // return windows.IsUserAnAdmin() == nil // IsUserAnAdmin returns an error if not admin

    // Using syscall directly (which IsUserAnAdmin often wraps)
    var sid *syscall.SID
    err := syscall.AllocateAndInitializeSid(
        &syscall.SECURITY_NT_AUTHORITY,
        2,
        syscall.SECURITY_BUILTIN_DOMAIN_RID,
        syscall.DOMAIN_ALIAS_RID_ADMINS,
        0, 0, 0, 0, 0, 0,
        &sid,
    )
    if err != nil {
        fmt.Printf("Error AllocateAndInitializeSid: %v
", err)
        return false
    }
    defer syscall.FreeSid(sid)

    isAdmin, err := syscall.CheckTokenMembership(0, sid)
    if err != nil {
        fmt.Printf("Error CheckTokenMembership: %v
", err)
        return false
    }
    return isAdmin
}

func main() {
    if IsAdministrator() {
        fmt.Println("当前用户是管理员。")
    } else {
        fmt.Println("当前用户不是管理员。")
    }

    // Example of an operation that requires admin privileges (on Windows)
    // This is often a pragmatic way to check if an action will succeed.
    // However, it's not a direct check of "is admin" status.
    // For example, trying to create a file in C:Windows
    // file, err := os.Create("C:\Windows\test_admin.txt")
    // if err != nil {
    //  if os.IsPermission(err) {
    //      fmt.Println("尝试执行需要管理员权限的操作失败：权限不足。")
    //  } else {
    //      fmt.Printf("尝试执行需要管理员权限的操作失败：%v
", err)
    //  }
    // } else {
    //  fmt.Println("成功执行需要管理员权限的操作。")
    //  file.Close()
    //  os.Remove("C:\Windows\test_admin.txt")
    // }
}

package main

import (
    "fmt"
    "golang.org/x/sys/windows" // Import the Windows specific package
)

func IsAdministrator() bool {
    return windows.IsUserAnAdmin() == nil // IsUserAnAdmin returns an error if not admin
}

func main() {
    if IsAdministrator() {
        fmt.Println("当前用户是管理员。")
    } else {
        fmt.Println("当前用户不是管理员。")
    }
}