本文整理汇总了C#中System.Linq.Expressions.LabelTarget类的典型用法代码示例。如果您正苦于以下问题：C# LabelTarget类的具体用法？C# LabelTarget怎么用？C# LabelTarget使用的例子？那么, 这里精选的类代码示例或许可以为您提供帮助。
LabelTarget类属于System.Linq.Expressions命名空间，在下文中一共展示了LabelTarget类的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C#代码示例。
示例1: typeof
// Add the following directive to the file:
// using System.Linq.Expressions;
// A label expression of the void type that is the target for Expression.Return().
LabelTarget returnTarget = Expression.Label();
// This block contains a GotoExpression that represents a return statement with no value.
// It transfers execution to a label expression that is initialized with the same LabelTarget as the GotoExpression.
// The types of the GotoExpression, label expression, and LabelTarget must match.
BlockExpression blockExpr =
Expression.Block(
Expression.Call(typeof(Console).GetMethod("WriteLine", new Type[] { typeof(string) }), Expression.Constant("Return")),
Expression.Return(returnTarget),
Expression.Call(typeof(Console).GetMethod("WriteLine", new Type[] { typeof(string) }), Expression.Constant("Other Work")),
Expression.Label(returnTarget)
);
// The following statement first creates an expression tree,
// then compiles it, and then runs it.
Expression.Lambda<Action>(blockExpr).Compile()();输出：
Return "Other Work" is not printed because the Return expression transfers execution from Expression.Return(returnTarget) to Expression.Label(returnTarget).