将位掩码从c#转换为Python (if语句)

using System;

class Program
{
    static void Main()
    {
        // 定义位掩码常量
        const int ReadPermission = 1;
        const int WritePermission = 2;
        const int ExecutePermission = 4;

        // 假设用户拥有读、写、执行权限
        int userPermissions = ReadPermission | WritePermission | ExecutePermission;

        // 检查权限
        if ((userPermissions & ReadPermission) != 0)
        {
            Console.WriteLine("用户拥有读权限");
        }
        if ((userPermissions & WritePermission) != 0)
        {
            Console.WriteLine("用户拥有写权限");
        }
        if ((userPermissions & ExecutePermission) != 0)
        {
            Console.WriteLine("用户拥有执行权限");
        }
    }
}

# 定义位掩码常量
ReadPermission = 1
WritePermission = 2
ExecutePermission = 4

# 假设用户拥有读、写、执行权限
userPermissions = ReadPermission | WritePermission | ExecutePermission

# 检查权限
if (userPermissions & ReadPermission) != 0:
    print("用户拥有读权限")
if (userPermissions & WritePermission) != 0:
    print("用户拥有写权限")
if (userPermissions & ExecutePermission) != 0:
    print("用户拥有执行权限")