认识到有必要为Web组件指定操作和验证方法后，JSFEL变体添加了一个允许在属性内使用方法表达式的特性。
Recognizing the need to specify action and validation methods for a Web component, the JSF EL variant added another feature allowing you to use method expressions within an attribute.
你可以在方法主体只有一个表达式的时候省略大括号。
You can omit the braces if the method body has just one expression.
我们可以在这编写一个表达式来匹配许多类的方法的集合。
We could write an expression here that matched a set of methods, on many classes.
规则表达式是一种很简练方法，用于描述可能在文本中出现的模式。
A regular expression is a concise way of describing a pattern that might occur in a text.
OQL查询同样可以调用对象的方法，将正则表达式作为查询的一部分，并使用内置查询工具。
OQL queries can also invoke methods on the objects themselves, use regular expressions as part of the query, and use built-in query tools.
然而，此过程也再次说明执行同一任务有多种方法，而且有时正则表达式并非总是最佳选择。
Again, however, this procedure also demonstrates that there are multiple ways to do the same task, and sometimes regular expressions aren't always the best option.
在命令行中，可以采用许多方法使用正则表达式。
At the command line, you'll find many ways to use regular expressions.
它定义了一些用于处理组成我们脚本的多个表达式的方法。
This defines the methods that will be used handle the various expressions that make up our script.
正则表达式是执行此操作的更好方法。
Regular expressions are a much better means of performing this operation.
IBMJIT编译器使用一个表达式树序列表示方法的操作。
The IBM JIT compiler USES a sequence of expression trees to represent the method's operations.
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.
在组件框架中，UI事件或解析的值绑定表达式直接导致方法调用。
In a component framework, invocations are a direct result of either UI events or resolved value-binding expressions.
同时还按顺序回顾了最有意思的代码片段，并论述了两种不同的表达式求值方法。
We reviewed the most interesting code snippets along the way and discussed two different approaches to expression evaluation.
也可以建立布尔表达式以调用方法。
You can also set up the Boolean expression to call a method.
根据SQL标准，评估分层或双向数据的方法为递归通用表表达式(RCTE)。
According to the SQL Standard, the method to evaluate hierarchical or bi-directional data is the Recursive Common Table Expression (RCTE).
这个小示例使用最简单的方法：正则表达式。
This small example USES the simplest thing that could possibly work: regular expressions.
第三个值UNKNOWN是一个错误表达式的结果，处理方法与FALSE相同。
A third value, UNKNOWN, is the result of an incorrect expression and has the same behavior as FALSE.
C+ +没有提供查询变量或表达式的类型的简便方法。
C + + has never had an easy mechanism for querying the type of a variable or an expression.
在这个特殊的例子中，方法引用比lambda表达式更清晰地表达了我们的意图，但它们的概念是一样的。
In this particular example, a method reference is a clearer expression of what we mean than a lambda expression, but the idea is the same.
当nose 检查测试类的内部时，它运行与同一正则表达式匹配的方法。
When nose looks inside of a test class, it runs methods matching that same regular expression.
用.Compile()方法去将一个表达式树转换为一个委托，然后你可以执行它。
Use the .Compile() method to turn the expression tree into a delegate so that you can execute it.
这说明，该函数必须在一个涉及比较操作并且引用了索引扩展hash _ index的搜索方法“equals”的表达式中使用。
It says that the function must be used in an expression involving the comparison operation and that the search method "equals" of the index extension hash_index is referred to.
这些参数传递到表达式对象的invoke方法。
These parameters are passed to the invoke method of the expression object.
如果输入文本与正则表达式匹配，则该方法返回true。
If the input text matches the regular expression, what this method returns is true.
MetaLinq并不是唯一对表达式树进行编辑的方法。
可以使用evaluate方法计算表达式。
因此，SPOT程序不能访问文件流；没有反射，没有串行化，没有本地方法，没有正则表达式，没有Swing，只有有限的数据类型。
Therefore, SPOT programs don't have access to file streams; there's no reflection, no serialisation, no classloading, no native methods, no regular expressions, no Swing, and only limited data types.
返回查询表达式的两个方法都返回QueryExpression对象。
Both of the methods that return query expressions will return a QueryExpression object to you.
XPath和XPathExpression都提供了4种不同的方法计算XPath表达式，是通过重载evaluate实现的。
Both XPath and XPathExpression offer four different methods for evaluating an XPath expression, which are provided as different overloadings of a method called evaluate.
XPath和XPathExpression都提供了4种不同的方法计算XPath表达式，是通过重载evaluate实现的。
Both XPath and XPathExpression offer four different methods for evaluating an XPath expression, which are provided as different overloadings of a method called evaluate.
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