c# - 使用动态关键字从 C# 运行 IronPython 对象

Question

我有以下 IronPython 代码。

class Hello:
    def __init__(self):
        pass
    def add(self, x, y):
        return (x+y)

我可以编写以下 C# 代码来使用 IronPython 代码。

static void Main()
{
    
    string source = GetSourceCode("ipyth.py");
    Engine engine = new Engine(source);
    ObjectOperations ops = engine._engine.Operations;

    bool result = engine.Execute();
    if (!result)
    {
        Console.WriteLine("Executing Python code failed!");
    }
    else
    {
        object klass = engine._scope.GetVariable("Hello");
        object instance = ops.Invoke(klass);
        object method = ops.GetMember(instance, "add");
        int res = (int) ops.Invoke(method, 10, 20);
        Console.WriteLine(res);
    }

    Console.WriteLine("Press any key to exit.");
    Console.ReadLine();
}

我可以使用动态 DLR 简化此代码吗？

IronPython In Action <15.4.4 The future of interacting with dynamic objects> 书对此有简单的解释，但我找不到一些例子。

已添加

我附上程序的源文件/批处理文件。 Program.cs runme.bat

Answer 1

是的，动态可以让你的代码更简单

        var source =
            @"
class Hello:
def __init__(self):
    pass
def add(self, x, y):
    return (x+y)

";

        var engine = Python.CreateEngine();
        var scope = engine.CreateScope();
        var ops = engine.Operations;

        engine.Execute(source, scope);
        var pythonType = scope.GetVariable("Hello");
        dynamic instance = ops.CreateInstance(pythonType);
        var value = instance.add(10, 20);
        Console.WriteLine(value);

        Console.WriteLine("Press any key to exit.");
        Console.ReadLine();