本文整理汇总了VB.NET中System.Linq.Expressions.Expression.Decrement方法的典型用法代码示例。如果您正苦于以下问题：VB.NET Expression.Decrement方法的具体用法？VB.NET Expression.Decrement怎么用？VB.NET Expression.Decrement使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类System.Linq.Expressions.Expression的用法示例。
在下文中一共展示了Expression.Decrement方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的VB.NET代码示例。
示例1: Func
' Add the following directive to your file:
' Imports System.Linq.Expressions
Dim num As Double = 5.5
' This expression represents a decrement operation
' that subtracts 1 from a value.
Dim decrementExpr As Expression = Expression.Decrement(
Expression.Constant(num)
)
' Print the expression.
Console.WriteLine(decrementExpr.ToString())
' The following statement first creates an expression tree,
' then compiles it, and then executes it.
Console.WriteLine(
Expression.Lambda(Of Func(Of Double))(decrementExpr).Compile()())
' The value of the variable did not change,
' because the expression is functional.
Console.WriteLine("object: " & num)输出：
Decrement(5.5) 4.5 object: 5.5