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Python六大开源框架对比

Python是一门动态、面向对象语言。其最初就是作为一门面向对象语言设计的，并且在后期又加入了一些更高级的特性。除了语言本身的设计目的之外，Python标准库也是值得大家称赞的，Python甚至还自带服务器。其它方面，Python拥有足够多的免费数据函数库、免费的Web网页模板系统、还有与Web服务器进行交互的库、这些都可以设计到你的Web应用程序里面。回顾基于Python的6大Web应用框架：1.Zope2Zope2是一款基于Python的Web应用框架

系统 2019-09-27 17:38:06 1947

Python

python dict.get()和dict['key']的区别详解

先看代码：In[1]:a={'name':'wang'}In[2]:a.get('age')In[3]:a['age']---------------------------------------------------------------------------KeyErrorTraceback(mostrecentcalllast)in()---->1a['age']KeyError:'age'In[4]:a.get('age',10)Out[4

系统 2019-09-27 17:38:06 1947

Python

儿童python练习实例

实例一：题目：有四个数字：1、2、3、4，能组成多少个互不相同且无重复数字的三位数？各是多少？程序分析：可填在百位、十位、个位的数字都是1、2、3、4。组成所有的排列后再去掉不满足条件的排列(只要百不等于十位并且不等于个位)。实例(Python2.0+)#!/usr/bin/python#-*-coding:UTF-8-*-foriinrange(1,5):#百位forjinrange(1,5):#十位forkinrange(1,5):#个位if(i!=k

系统 2019-09-27 17:37:41 1947

编程技术

Struts2学习笔记1_基本配置与登录

struts官方网址：http://struts.apache.org1.新建web工程,导入基本的5个jar包：commons-logging-1.0.4.jarfreemarker-2.3.8.jarognl-2.6.11.jarstruts2-core-2.0.14.jarxwork-2.0.7.jar2.配置web.xml过滤器

struts2

org.a

系统 2019-08-29 23:37:56 1947

编程技术

【Flex应用展示之】-GOOGLE WEB DESKTOP

Flex应用展示之-GOOGLEWEBDESKTOP刚刚拿到这个消息的时候，我很吃惊，啊，google终于要找哦web操作系统啦，也是我便去google的lab去找这个产品，早来找不到。到最后回到作者的网页上才发现，原来这个应用并不是google搞得，而是另一款的flex网络应用程序。太有才，我只能这么说了，于是便赶到其主页一睹新鲜。这个应用搜集了google几乎所有的产品，不过现在做的不是太完善，还有很多的bug有待改进，不过我很期待这款应用程序何时才能

系统 2019-08-29 23:30:03 1947

编程技术

微软企业库4.1学习笔记（十七）缓存模块5 缓存

本节介绍开发者在使用缓存的时候，常用的方法。每个方法在实际开发中都可以找到对应的用处，会有代码示例。分两个部分介绍，第一个部分包括下面的一些用法：向缓存添加数据，Add方法，如何向缓存中添加数据，设置过期，设置优先级。从缓存中删除数据，Remove方法从缓存中获取数据，GetData方法清空缓存，Flush方法第二部分介绍缓存的加载。1.1向缓存中添加数据需要缓存的数据，在创建和传输的时候都是很消耗性能的。例如，一个零售商的应用系统，一些列产品数据需要从数

系统 2019-08-29 23:29:28 1947

编程技术

完整的简单层拖动代码

howtomakeadragdivision-<ahref="http://www.never-online.net"target="_blank"><ahref="http://www.never-online.net"target="_blank">http://www.never-online.net<</span> <p class="auth-span"> <span class="muted"><i class="fa fa-user"></i><span class="zj-icon-text">系统</span></span> <span class="muted"><i class="fa fa-clock-o"></i><span class="zj-icon-text">2019-08-29 23:27:10</span></span> <span class="muted"><i class="fa fa-eye"></i><span class="zj-icon-text">1947</span></span>  </p> </article><article class="excerpt"> <header> <a title="编程技术" class="label label-important zj-del-target" href="/category/30">编程技术<i class="label-arrow"></i></a> <h2> <a class="zj-titles zj-del-target" href="/article/19372" title="股票入门：如何看盘" target="_blank" onclick="return recordId('',)">股票入门：如何看盘 </a> </h2> </header> <div class="focus"> <a class="zj-del-target" href="/article/19372" target="_blank"><img style="width: 200px; height: 123px;" class="thumb" src="/Public/static/images/article/4.jpg" alt="" title=""></a> </div> <span class="note" onclick="if (jq.browser.versions.mobile) {window.location.href='/article/19372';}else{window.open('/article/19372');}" style="cursor: pointer;">股票入门：如何看盘http://finance.sina.com.cn2006年05月22日17:03新浪财经握市场的动向，就要学会看大盘。首先在开盘时要看集中合竞价的股价和成交额，看是高开还是低开，就是说，和昨天的收盘价相比价格是高了还是低了。它表示出市场的意愿，期待今天的股价是上涨还是下跌。成交量的大小则表示参与买卖的人的多少，它往往对一天之内成交的活跃程度有很大的影响。然后在半小时内看股价变动的方向。 </p> </article><article class="excerpt"> <header> <a title="编程技术" class="label label-important zj-del-target" href="/category/30">编程技术<i class="label-arrow"></i></a> <h2> <a class="zj-titles zj-del-target" href="/article/18794" title=".net变量" target="_blank" onclick="return recordId('',)">.net变量 </a> </h2> </header> <div class="focus"> <a class="zj-del-target" href="/article/18794" target="_blank"><img style="width: 200px; height: 123px;" class="thumb" src="/Public/static/images/article/14.jpg" alt="" title=""></a> </div> <span class="note" onclick="if (jq.browser.versions.mobile) {window.location.href='/article/18794';}else{window.open('/article/18794');}" style="cursor: pointer;">一、.net变量命名的注意事项1.变量名的第一个字符必须是字母、汉字、下划线。2.变量名不能包含空格、小数点、以及各种符号3.组成变量名的字符数不能超过255个字符4.变量名不能是关键字5.变量名在同一范围内必须是惟一的二、变量的声明在默认的情况下，.NET编译器强制使用变量声明，即在使用变量前，必须声明变量VB.NET提供了控制声明的开关。如果将此开关关闭，则无需声明即可使用变量。使用的方法如下：在集成开发环境中，设置项目的属性，然后选择“编译”，更改O</span> <p class="auth-span"> <span class="muted"><i class="fa fa-user"></i><span class="zj-icon-text">系统</span></span> <span class="muted"><i class="fa fa-clock-o"></i><span class="zj-icon-text">2019-08-29 23:11:05</span></span> <span class="muted"><i class="fa fa-eye"></i><span class="zj-icon-text">1947</span></span>  </p> </article><article class="excerpt"> <header> <a title="编程技术" class="label label-important zj-del-target" href="/category/30">编程技术<i class="label-arrow"></i></a> <h2> <a class="zj-titles zj-del-target" href="/article/18273" title="j2me j2ee 数据库连接问题" target="_blank" onclick="return recordId('',)">j2me j2ee 数据库连接问题 </a> </h2> </header> <div class="focus"> <a class="zj-del-target" href="/article/18273" target="_blank"><img style="width: 200px; height: 123px;" class="thumb" src="/Public/static/images/article/8.jpg" alt="" title=""></a> </div> <span class="note" onclick="if (jq.browser.versions.mobile) {window.location.href='/article/18273';}else{window.open('/article/18273');}" style="cursor: pointer;">本人刚接触j2me，公司现在做一个移动办公系统要求用j2ee和j2me结合，手机客户端用到j2me，可是要求手机客户端能够连到J2ee的Oracle数据库上，登陆的时候需要有用户名权限之类的，请各位帮下忙，j2me怎么通过http连到Oracle，并且可以实现web层和wap层能实现功能？紧急。。。。。j2mej2ee数据库连接问题</span> <p class="auth-span"> <span class="muted"><i class="fa fa-user"></i><span class="zj-icon-text">系统</span></span> <span class="muted"><i class="fa fa-clock-o"></i><span class="zj-icon-text">2019-08-29 23:04:17</span></span> <span class="muted"><i class="fa fa-eye"></i><span class="zj-icon-text">1947</span></span>  </p> </article><div class="pagination" style="display:;"> <ul><li><a href="/search/cluster/1/p/1">首页</a></li> <li class="prev-page"><a 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