用ref或out参数编写Iron Python方法 [英] Writing iron python method with ref or out parameter

问题描述

我需要将以下C#方法转换为相同的IronPhyton方法

i need to translate following C# method to the same IronPhyton method

private void GetTP(string name, out string ter, out int prov)
{
  ter = 2;
  prov = 1;
}

推荐答案

在python中(因此在IronPython中)，您不能更改不可变的参数(如字符串)

In python (and consequently in IronPython) you cannot change a parameter that is not mutable (like strings)

因此您不能直接将给定的代码翻译为python，但必须执行以下操作:

So you can't directly traslate the given code to python, but you must do something like:

def GetTP(name):
  return tuple([2, 1])

当您调用它时，您必须执行以下操作:

and when you call it you must do:

retTuple = GetTP(name)
ter = retTuple[0]
prov = retTuple[1]

在IronPython中调用包含out/ref参数的C#方法时，这是相同的行为.

that is the same behaviour when in IronPython you call a C# method containing out/ref parameters.

实际上，在这种情况下，IronPython返回一个out/ref参数元组，如果有返回值，则该元组中的第一个.

In fact, in that case IronPython returns a tuple of out/ref parameters, and if there's a return value is the first in the tuple.

实际上，可以使用out/ref参数覆盖方法，请看这里:

actually it's possible to override a method with out/ref parameters, look here:

http://ironpython.net/documentation/dotnet/dotnet.html#methods-with-ref-or-out-parameters

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