如何静态获取Windows系统调用程序集？

using System;
using System.Runtime.InteropServices;

class Program
{
    // 导入LoadLibrary函数
    [DllImport("kernel32.dll", SetLastError = true)]
    public static extern IntPtr LoadLibrary(string dllToLoad);

    // 导入GetProcAddress函数
    [DllImport("kernel32.dll", CharSet = CharSet.Ansi, ExactSpelling = true, SetLastError = true)]
    public static extern IntPtr GetProcAddress(IntPtr hModule, string procedureName);

    // 示例：获取MessageBox函数的指针并调用
    static void Main()
    {
        // 加载user32.dll库
        IntPtr hModule = LoadLibrary("user32.dll");

        // 获取MessageBox函数的指针
        IntPtr pMessageBox = GetProcAddress(hModule, "MessageBoxA");

        // 定义MessageBox函数的委托
        delegate int MessageBoxDelegate(IntPtr hWnd, string lpText, string lpCaption, uint uType);

        // 将函数指针转换为委托
        MessageBoxDelegate MessageBoxFunc = (MessageBoxDelegate)Marshal.GetDelegateForFunctionPointer(pMessageBox, typeof(MessageBoxDelegate));

        // 调用MessageBox函数
        MessageBoxFunc(IntPtr.Zero, "Hello World!", "Message", 0);

        // 释放库
        FreeLibrary(hModule);
    }
}