问题
What ways do I have in .net to run code from string?
Console.WriteLine(Compile("1 + 2 * 3")); // results is 7.
What other options do we have?
- C# - Compile the code on runtime?
- IronRuby / IronPython?
- F#?
回答1:
So, the dynamic languages like IronRuby and IronPython make it very easy to do what you want. Create a script engine and execute the string. Easy as that.
C#, it is possible, using the Code DOM... but it it compiles the code every time into a DLL. This is a costly behavior and can cause your app to grow in memory size over time if you don't do some tricky stuff with App Domains. It CAN be done, but I really prefer using IronRuby or IronPython over this approach. It is much more simple.
Finally, in C# 5.0, we are expecting to see the compiler as a managed service. This means you will be able to run eval("//c#code") in the future... but it is not available yet.
Hope it helps!
回答2:
Checkout NCalc. It's a dll you can include in your application and it supports multiple math and logic operations. http://ncalc.codeplex.com/
来源：https://stackoverflow.com/questions/2965597/net-4-run-code-from-string-in-c-sharp-f-ironruby-ironpython