成员表达式包含成员标识符、成员函数或可以转换为成员的表达式。
A member expression contains a member identifier, a member function, or an expression that can be converted to a member.
例如，当实际值或表达式是一个节点集时，一旦找到节点集的一个成员时，就可以立即知道最终的布尔值结果。
For example, when the actual value or the expression is a node-set, the final Boolean result is known as soon as a single member of the node-set is found.
智能完成任务非常有效，实时过滤成员方法和变量以匹配你输入的表达式。
Smart Completion works at the right-hand side of assignments, filtering the list of methods and variables to match the expected type of expression.
items属性的值应该是一个集合，对该集合的成员进行迭代，通常使用el表达式指定值。
The value of the items attribute should be the collection over whose members the iteration is to occur, and is typically specified using an EL expression.
如果没有为allowedMembers指定表达式，那么将认为该维度的所有成员都可以被分配了策略的角色访问。
If you do not specify an expression for Allowed members, all members of the dimension are considered to be accessible by a role that is assigned the policy.
通过执行成员赋值表达式 %htm:input.\input/reviewer% 来确定任务的所有者。
Execution of the staff assignment expression %htm:input.\input/reviewer%
允许和拒绝的成员组必须是MDX表达式，表达式的计算结果为该维度的成员组。
The sets of allowed and denied members must be MDX expressions that evaluate to sets of members of the dimension.
例如，枚举成员的初始化式必须是常量表达式。
For example, the initializer of an enumerator must be a constant expression.
它们被局限于只能访问来自表达式上下文中的成员。
They are restricted to referencing members of the expression context.
索引或表达式与集合的现有成员不匹配。
Index or expression does not match an existing member of the collection.
不能指定类，但是可以指定类的成员函数，并让表达式计算器向外搜索。
You cannot specify a class, but you can specify a member function of the class and let the expression evaluator search outward.
如果表达式表示类或结构，则将作为表达式对象来检索成员变量列表。
If the expression represents a class or structure, retrieve a list of member variables, as expression objects.
如果表达式表示类或结构，则将作为表达式对象来检索成员变量列表。
If the expression represents a class or structure, retrieve a list of member variables, as expression objects.
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