将表达式转换为Expression< Func< T，bool>
如果在 T 上创建了Expression的实例，是否可以将 Expression 转换为 Expression< Func< T，bool>> ?
Is that possible to convert Expression to Expression<Func<T, bool>> if instance of Expression was created on T ?
最后，我具有列表 List< Expression> ，并且需要在 Expression< Func< T，bool>> 上生成，其中 List<; Expression> 与 AND 聚合.
At the end I have list List<Expression> and need to produce on Expression<Func<T, bool>> where each expression of List<Expression> is agregated with AND.
是；只需调用 Expression.Lambda< Func< T，bool>>(...，参数)，其中 ... 是一个由您要表达的表达式组成的表达式结合起来.
Yes; just call Expression.Lambda<Func<T, bool>>(..., parameter), where ... is an expression composed of the expressions you want to combine.
您可能想要 list.Aggregate(Expressions.AndAlso).
如果您的表达式并不都共享相同的 ParameterExpression ，则需要对其进行重写.(使用 ExpressionVisitor )
If your expressions don't all share the same ParameterExpression, you'll need to rewrite them to do so. (use ExpressionVisitor)