Both can specify an index operator class and both can be sorted in ascending or descending order.
这两种索引都可以指定索引操作符类并按照降序或升序排列。
All the operators and functions used by an operator class must be defined before the operator class is created.
所有操作符表使用的函数和操作符都必须在创建操作符表之前定义。
An operator class is used in conjunction with the access method to specify the operators used for building the index and during query optimization.
将操作符类与访问方法结合使用，可以指定创建索引和优化查询时使用的操作符。
The operator class also specifies the support procedures to be used by the index method when the operator class is selected for an index column.
操作符表还声明索引方法在为一个索引字段选定该操作符表的时候要使用的支持过程。
Note: the query optimizer considers using a functional index when the index expression is used in a relational expression or as an argument to one of the operator class functions.
注意：当索引表达式被用于关系表达式，或作为某个操作符类函数的参数时，查询优化器将考虑使用函数索引。
The same overloaded operator allows you to construct objects of class A, B, and C in shared memory.
同一个重载的操作符让您可以在共享内存中构造类A、B和C 的对象。
The scope resolution operator should sit between the class name and the static property you wish to access.
范围解析操作符应位于类名和希望访问的静态属性之间。
To call a static method from outside of its class, use the class name together with the scope resolution operator and the name of the method.
要从类外部调用静态方法，可使用类名加上范围解析符和方法名。
You can verify it manually with the instanceof operator, a handy tool introduced with PHP V5 that sits between an object instance and a class name.
可以用instance of操作符来手动验证这一点，该操作符是PHPV 5引入的介于对象实例和类名之间的一个便捷工具。
In this case, the exponentiation operator is another form of binary operator so the existing BinaryOp case class serves.
在本例中，求幂运算符是另一种形式的二进制运算符，所以使用现有BinaryOp case类就可以。
You can test this using the instanceof operator, which returns true if the object is a member of the indicated class, as shown in Listing 14.
可以使用instance of操作符来测试这一点，如果对象是指定类的成员，则返回true，如清单14所示。
The instanceof operator resolves to true if the given object is an instance of the given class.
如果给定对象是给定类的实例，则 instanceof操作符解析为真。
Also notice the lack of declarations and the lack of a new operator when creating class instances.
还要注意在创建类实例时没有声明、也没有new运算符。
The powerful as operator in Groovy takes a code block and generates a new class that implements the interface, which you can then call as if it were a concrete class implementing the interface.
Groovy中强大的as操作符接收一个代码块并生成一个新类来实现该接口，您可以像调用实现该接口的具体类一样调用它。
This section discusses modeling an assignment operator for a C++ class. To generate this assignment operator for a C++ class named Class1, perform these steps
这部分讨论的是为 C++类建模一个赋值操作符。
Now, try using a copy construction and operator assignment for class a, declared in Listing 15.
现在，尝试为类a使用一个复制结构和运算符赋值，在清单15中声明该类。
As an example of when RTTI might be useful, consider a class hierarchy for which we'd like to implement the equality operator.
作为说明何时可以使用RTTI的例子，考虑一个类层次，我们希望为它实现相等操作符。
The noncopyable class definition presents no surprises, as the copy constructor and operator= are declared private.
noncopyable类定义没有什么令人感到新奇的地方，因为copyconstructor和operator= 声明为 private。
It also has among the lowest prices anywhere, and a home-grown, world-class operator, Bharti Airtel.India's mobile-phone industry inspires great hopes.
印度的手机通讯费用也是各个国家中最低的，并且，印度拥有一个本土成长起来的、世界级的电信运营商Bharti Airtel。
It also has among the lowest prices anywhere, and a home-grown, world-class operator, Bharti Airtel. India's mobile-phone industry inspires great hopes.
印度的手机通讯费用也是各个国家中最低的，并且，印度拥有一个本土成长起来的、世界级的电信运营商BhartiAirtel。
Each class whose instance will go into the container must implement at least the copy constructor it is good to implement also the assignment operator.
每个类(其实例要在容器内使用)必须至少实现拷贝构造函数(实现赋值运算符，也是好习惯)。
For a type conversion operator, either the operand or the return type must be of the data type of the class or structure.
对于类型转换运算符，操作数或返回类型必须是类或结构的数据类型。
To manage a class with pointer members, we must define all three copy-control members: the copy constructor, assignment operator, and the destructor.
为了管理具有指针成员的类，必须定义三个复制控制成员：复制构造函数、赋值操作符和析构函数。
The problem of minimum_energy optimal control for multivariable linear systems determined by a class of differential operator matrixes is investigated.
考察由一类微分算子阵描述的多变量线性系统的极小能最优控制问题。
And give general forms of every class of degenerate operator algebras by the representations of this algebra and constructions of symmetric ideals.
并通过算子代数的分解以及对称理想的结构给出各类退化算子代数的一般形式。
In this paper, integral transforms of functions belong tot he class are investigated, some results of a close to convex integral operator are given as well.
讨论了解析函数子族的积分变换，相应地给出了一类近于凸积分算子的某些结果。
The dot operator applies only to objects of class type: the left-hand operand must be an object of class type; the right-hand operand must name a member of that type.
点操作符仅应用于类类型的对象：左操作数必须是类类型的对象，右操作数必须指定该类型的成员。
The dot operator applies only to objects of class type: the left-hand operand must be an object of class type; the right-hand operand must name a member of that type.
点操作符仅应用于类类型的对象：左操作数必须是类类型的对象，右操作数必须指定该类型的成员。
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