这是我的.net代码

namespace MyMathLib
{
    public class Methods
    {
        public Methods()
        {
        }
        public static int Sum(int a, int b)
        {
            return a + b;
        }
        public int Product(int a, int b)
        {
            return a * b;
        }
    }
}

我正在尝试用powershell加载dll

$AssemblyPath = "D:\Visual Studio code\MyMathLib\bin\Debug\net6.0\MyMathLib.dll"
$bytes = [System.IO.File]::ReadAllBytes($AssemblyPath)
[System.Reflection.Assembly]::Load($bytes)
[MyMathLib.Methods]::Sum(10, 2)

它给出了下面的错误. dll位置是确定的..可以请任何人帮助

Unable to find type [MyMathLib.Methods].
At line:4 char:1
+ [MyMathLib.Methods]::Sum(10, 2)
+ ~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidOperation: (MyMathLib.Methods:TypeName) [], RuntimeException
    + FullyQualifiedErrorId : TypeNotFound

如何解决这个问题？“