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JAVA项目加密(Windows/Linux/Mac/龙芯系统)

视频讲解-Java调用DLL

一行Python代码过滤标点符号等特殊字符

很多时候我们需要过滤掉标点符号等特殊字符，网上虽然有一堆的方法，但是都没有找到一个非常满意的，有些过滤不了中文的标点符号，有些过滤不了英文的标点符号，有些过滤不全。最后通过查看正则表达式文档，发现一个高效的办法，一行代码就能搞定：defreplace_all_blank(value):"""去除value中的所有非字母内容，包括标点符号、空格、换行、下划线等:paramvalue:需要处理的内容:return:返回处理后的内容"""#\W表示匹配非数字字母

系统 2019-09-27 17:46:03 2007

Python

Python 实现文件的全备份和差异备份详解

Python实现文件的全备份和差异备份之前有写利用md5方式来做差异备份，但是这种md5方式来写存在以下问题：md5sum获取有些软连接的MD5值存在问题不支持对空目录进行备份，因为md5sum无法获取空目录的md5值权限的修改md5sum无法判断解决方案：利用文件的mtimectimemtime（Modifiedtime）是在写入文件时随文件内容的更改而更改的ctime（Createtime）是在写入文件、更改所有者、权限或链接设置时随Inode的内容更

系统 2019-09-27 17:45:28 2007

Python

Python的内存泄漏及gc模块的使用分析

一般来说在Python中，为了解决内存泄漏问题，采用了对象引用计数，并基于引用计数实现自动垃圾回收。由于Python有了自动垃圾回收功能，就造成了不少初学者误认为自己从此过上了好日子，不必再受内存泄漏的骚扰了。但如果仔细查看一下Python文档对__del__()函数的描述，就知道这种好日子里也是有阴云的。下面摘抄一点文档内容如下：Somecommonsituationsthatmaypreventthereferencecountofanobjectfr

系统 2019-09-27 17:38:39 2007

Python

Python实现单词拼写检查

这几天在翻旧代码时发现以前写的注释部分有很多单词拼写错误，这些单词错得不算离谱，应该可以用工具自动纠错绝大部分。用Python写个拼写检查脚本很容易，如果能很好利用aspell/ispell这些现成的小工具就更简单了。要点1、输入一个拼写错误的单词，调用aspell-a后得到一些候选正确单词，然后用距离编辑进一步�鹧〕龈�精确的词。比如运行aspell-a，输入‘hella'后得到如下结果：hell,Helli,hello,heal,Heall,he'll

系统 2019-09-27 17:38:21 2007

Python

使用Python生成随机密码的示例分享

生成随机密码这件事情用python来干确实相当的方便，优美的string方法加上choice简直是绝配make_password.py###简单几行代码执行即可生成记不住的字符串###$pythonmake_passwd.pyDLrw9EiTQs4Wm84qRQwl4L2Lu9g0LgwWjHPtYdyU...$pythonmake_passwd.pyDLrw9EiTQs4Wm84qRQwl4L2Lu9g0LgwWjHPtYdyU...代码如下――注释比代

系统 2019-09-27 17:38:06 2007

编程技术

047_《Delphi技术手册》

《Delphi技术手册》Delphi教程系列书籍(047)《Delphi技术手册》网友（邦）整理EMail:shuaihj@163.com下载地址：Pdf附书源码原书名：DelphiinaNutshell原出版社：O'Reilly作者：（美）RayLischner译者：肖雪莲朱腾辉丛书名：O'Reilly系列出版社：中国电力出版社ISBN：7508305426上架时间：2001-8-8出版日期：2001年4月页码：636版次：1-1内容简介Inprise／

系统 2019-08-29 23:43:15 2007

编程技术

Expression Blend中文教程 - 开篇

随着计算机软件开发分工细节化，微软对已有的产品线进行了调整，在保持原有经典开发工具VisualStudio基础上，又推出了一套新的设计开发工具系列，ExpressionStudio。ExpressionStudio设计工具系列包含四项主要产品：ExpressionBlendExpressionBlend（下称Blend），是一款用于设计桌面和Web应用用户界面的可视化工具。用户可以通过拖拉控件方式创建用户交互界面；另外Blend中，包含一款软件原型建模工具

系统 2019-08-29 23:28:41 2007

编程技术

完整的简单层拖动代码

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