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01.Regular Expressions (1) ---- What is Regular Expressions?
Regular Expressions (1) ---- What is Regular Expressions? 正则表达式是常见常忘，所以还是记下来比较保险，于是就有了这篇笔记。希望对大家会有所帮助。J1．什么是正则表达式.....................................查看完整版>>Regular Expressions (1) ---- What is Regular Expressions?02.Regular Expressions (1) ---- What is Regular Expressions?
Regular Expressions (1) ---- What is Regular Expressions? 正则表达式是常见常忘，所以还是记下来比较保险，于是就有了这篇笔记。希望对大家会有所帮助。J1．什么是正则表达式.....................................查看完整版>>Regular Expressions (1) ---- What is Regular Expressions?03.Master Regular Expressions 2nd Edition(二)
修改文本1、Perl中的替换表达式为：$var =~ s/regex/replacement/可以在replacement中使用$1等变量2、Perl中<>表示一行文本3、definded($val)查看一个变量是否有定义4、lookaround：定位标识，定位到匹配文本位...查看完整版>>Master Regular Expressions 2nd Edition(二) 04.SAS9新体验－在DATA STEP中使用perl 正则表达式支持（Regular Expressions）
sas自9版开始支持perl（Perl 5.6.1 ） 正则表达式支持，极大的方便了数据校验的简易性、可靠性在没有Regular Expressions（RE）前，只能使用index,substr,tranwrd等函数对字符串进行操作，但这些函数对动态字符串的操...查看完整版>>SAS9新体验－在DATA STEP中使用perl 正则表达式支持（Regular Expressions）05.RFC491 - What is Free?
Network Working Group M. A. PadlipskyRequest for Comments: 491 MIT-MulticsNIC: 15356 12 April 1973 What Is Free In at least three of the RFC's about "mail" and the File Transfer Protocol (RFC's 45...查看完整版>>RFC491 - What is Free?06.What Is Java
In this Article The Java Programming Language The Java Platforms The Java Virtual Machine The JVM Without Java The Java Community Process Conclusions We recently received an ema...查看完整版>>What Is Java07.What is love, and what is dedication?
I can’t remember how long it is since I wrote here last time, but I can’t help writing something here today. And I hope I can finish the short passage without being interrupted. To write about this ...查看完整版>>What is love, and what is dedication?08.What is Canuck’s Comments in Your Eyes?
The author has no intention to indict any person in this theoretical discussion.What is Canuck’s Comments in my eyes? I don’t know; I even don’t know whether I can say that I have thought about thi...查看完整版>>What is Canuck’s Comments in Your Eyes?09..What is love?
I don't know how old some of you are, but I think a person's feelings about family change with time and experience. I remember when I was about 14 years old, one day wondering who I loved. I went ov...查看完整版>>.What is love?10.What is a good job
This is in response to Lily's question of what kind of job is good.I think a job that you can get what you work for is a good one, a job that can bring your ability and potential into full play is a b...查看完整版>>What is a good job

 

 

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