如何将参数传递到表达式树？

Question

I am developing the parser for expressions like this:

a1 + a2 + a3 > 0 and b <> "" or c = "source"

I want to use expression tree and collect parameters (a1, a2..) while parsing expression. How to pass parameters into an Expression tree?

Edit: I am using .net 4.0

Answer 1

将其包装在带有您感兴趣的参数的lambda中。在以下位置查看第二个示例： http : //msdn.microsoft.com/zh-cn/library/bb397951.aspx