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摘要：
What is the difference between urllib and urllib2 modules of Python?You might be intrigued by the existence of two separate URL modules in Python -urllibandurllib2. Even more intriguing: they are not alternatives for each other. So what is the difference betweenurllibandurllib2, and do we need them 阅读全文
posted @ 2012-04-09 18:20 feisky 阅读(499) 评论(0) 推荐(0) 编辑
摘要：
urllib.urlopen(url[, data[, proxies]]) : 创建一个表示远程url的类文件对象，然后像本地文件一样操作这个类文件对象来获取远程数据。参数url表示远程数据的路径，一般是网址；参数data表示以post方式提交到url的数据(玩过web的人应该知道提交数据的两种方式：post与get。如果你不清楚，也不必太在意，一般情况下很少用到这个参数)；参数proxies用于设置代理（这里不详细讲怎么使用代理，感兴趣的看客可以去翻阅Python手册urllib模块）。urlopen返回 一个类文件对象，他提供了如下方法：read() , readline() , rea 阅读全文
posted @ 2012-04-09 18:18 feisky 阅读(1491) 评论(0) 推荐(0) 编辑
摘要：
All low-level memory operations go through Xen.Guest OSes are responsible for allocating and initializing PTs for processes (restricted to read only access)allocates and initialize a page and register it with Xen to serve as the new PTDirect page writes are intercepted, validated and applied by the 阅读全文
posted @ 2012-04-09 15:51 feisky 阅读(1181) 评论(0) 推荐(0) 编辑 |
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