ExpressionVisitor.VisitUnary(UnaryExpression) 方法

定义

访问 UnaryExpression 的子级。Visits the children of the UnaryExpression.

protected public:
 virtual System::Linq::Expressions::Expression ^ VisitUnary(System::Linq::Expressions::UnaryExpression ^ node);
protected internal virtual System.Linq.Expressions.Expression VisitUnary (System.Linq.Expressions.UnaryExpression node);
abstract member VisitUnary : System.Linq.Expressions.UnaryExpression -> System.Linq.Expressions.Expression
override this.VisitUnary : System.Linq.Expressions.UnaryExpression -> System.Linq.Expressions.Expression
Protected Friend Overridable Function VisitUnary (node As UnaryExpression) As Expression

参数

node
UnaryExpression

要访问的表达式。The expression to visit.

返回

Expression

如果修改了该表达式或任何子表达式,则为修改后的表达式;否则返回原始表达式。The modified expression, if it or any subexpression was modified; otherwise, returns the original expression.

适用于