c# - 从 C# Ironpython 调用 .dll 函数

Question

使用 Ironpython，我从 .py 文件创建了一个 .dll。它具有我想要调用以在 C# 中使用的类和相应函数。我创建了 .dll，以便可以向用户隐藏源代码。

这是我尝试过的:

    ScriptEngine engine = Python.CreateEngine();
    scope = engine.CreateScope();
    engine.Runtime.LoadAssembly(Assembly.LoadFile(fullPath2DLL));
    scope = engine.ImportModule("Simulation");

但是，它找不到“模拟”。

此外，我想立即导入整个脚本，这样我就可以在任何时候调用任何内容[而不是“模拟”类]。

Answer 1

很多事情都可能出错，所以我将向您展示有效的完整示例。让我们以我在一些示例中获取的 python 代码为例:

MyGlobal = 5

class Customer(object):
"""A customer of ABC Bank with a checking account. Customers have the
following properties:

Attributes:
    name: A string representing the customer's name.
    balance: A float tracking the current balance of the customer's account.
"""

def __init__(self, name, balance=0.0):
    """Return a Customer object whose name is *name* and starting
    balance is *balance*."""
    self.name = name
    self.balance = balance

def withdraw(self, amount):
    """Return the balance remaining after withdrawing *amount*
    dollars."""
    if amount > self.balance:
        raise RuntimeError('Amount greater than available balance.')
    self.balance -= amount
    return self.balance

def deposit(self, amount):
    """Return the balance remaining after depositing *amount*
    dollars."""
    self.balance += amount
    return self.balance

现在让我们打开 ipy 并将其编译为 dll:

>>> import clr
>>> clr.CompileModules("path_to.dll", "path_to.py");

现在我们有了 dll。如您所见，Python 代码包含类定义，我们的目标是在 C# 中创建该类的实例并调用一些方法。

 public class Program {
    private static void Main(string[] args) {
        ScriptEngine engine = Python.CreateEngine();            
        engine.Runtime.LoadAssembly(Assembly.LoadFile(@"path_to.dll"));
        // note how scope is created. 
        // "test" is just the name of python file from which dll was compiled. 
        // "test.py" > module named "test"
        var scope = engine.Runtime.ImportModule("test");
        // fetching global is as easy as this
        int g = scope.GetVariable("MyGlobal");
        // writes 5
        Console.WriteLine(g);
        // how class type is grabbed
        var customerType = scope.GetVariable("Customer");
        // how class is created using constructor with name (note dynamic keyword also)
        dynamic customer = engine.Operations.CreateInstance(customerType, "Customer Name");
        // calling method on dynamic object
        var balance = customer.deposit(10.0m);
        // this outputs 10, as it should
        Console.WriteLine(balance);
        Console.ReadKey();
    }
}