从c# Ironpython调用.dll函数

本文关键字：dll 函数 调用 Ironpython | 更新日期: 2023-09-27 18:13:25

使用Ironpython，我从一个.py文件创建了一个.dll。它有我想在c#中调用的类和相应的函数。我创建了.dll，这样就可以对用户隐藏源代码。

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"Simulation"。

另外，我想一次导入整个脚本，这样我就可以调用无论何时[而不是类'Simulation']。

从c# Ironpython调用.dll函数

很多事情都可能出错，所以我只向您展示完整的工作示例。让我们看看我在一些例子中截取的python代码:

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并将其编译成dll:

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

现在我们有了dll。正如您所看到的，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();
    }
}
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