其中一个技巧是子表达式开始处的？：运算符。
One such trick is the? : operator at the beginning of a subexpression.
您还将通过使用这里展示的技巧来“翻译”正则表达式。
Using the technique I'm showing you, you'll also "translate" the regular expression.
如果您必须在正则表达式处理过程中处理Unicode,Wilson提供了一些值得看的技巧。
If you have to handle Unicode in your regular expression processing, Wilson supplies a few tricks worth looking at.
我在本文中演示的技巧也是从ResourceBundle 获得用于有效邮政编码的正则表达式。
The technique I demonstrate in this article retrieves the regular expression for valid postal codes from the ResourceBundles as well.
Python规则表达式有它自己的一些技巧。
Python regular expressions have a couple tricks of their own.
技巧5：处理不能匹配具有默认名称空间的文档的XPath选择表达式。
Tip 5: Handling XPath select expressions that fail to match documents with a default namespace.
采用积分变换技巧，推导出了环状光束通过湍流大气传输二阶矩束宽的解析表达式，并研究了湍流对环状光束扩展的影响。
The closed-form expression for the mean squared beam width of annular beams propagating through atmospheric turbulence is derived by using the integral transform technique.
采用积分变换技巧，推导出了环状光束通过湍流大气传输二阶矩束宽的解析表达式，并研究了湍流对环状光束扩展的影响。
The closed-form expression for the mean squared beam width of annular beams propagating through atmospheric turbulence is derived by using the integral transform technique.
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