摘要：classselenium.webdriver.support.expected_conditions.alert_is_presentBases:objectExpect an alert to be present.classselenium.webdriver.support.expected...
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摘要：classselenium.webdriver.support.color.Color(red,green,blue,alpha=1)Bases:objectColor conversion support classExample:from selenium.webdriver.support.c...
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摘要：classselenium.webdriver.support.select.Select(webelement)deselect_all()Clear all selected entries. This is only valid when the SELECT supports multipl...
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摘要：classselenium.webdriver.remote.webelement.WebElement(parent,id_)Bases:objectRepresents a DOM element.Generally, all interesting operations that intera...
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摘要：The WebDriver implementation.classselenium.webdriver.remote.webdriver.WebDriver(command_executor='http://127.0.0.1:4444/wd/hub',desired_capabilities=N...
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摘要：classselenium.webdriver.chrome.webdriver.WebDriver(executable_path='chromedriver',port=0,chrome_options=None,service_args=None,desired_capabilities=No...
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摘要：classselenium.webdriver.firefox.webdriver.WebDriver(firefox_profile=None,firefox_binary=None,timeout=30,capabilities=None,proxy=None)Bases:selenium.we...
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摘要：The Utils methods.selenium.webdriver.common.utils.free_port()Determines a free port using sockets.selenium.webdriver.common.utils.is_connectable(port)...
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摘要：The Desired Capabilities implementation.classselenium.webdriver.common.desired_capabilities.DesiredCapabilitiesBases:objectSet of default supported de...
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摘要：These are the attributes which can be used to locate elements. See theLocating Elementschapter for example usages.The By implementation.classselenium....
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摘要：The Keys implementation.classselenium.webdriver.common.keys.KeysBases:objectSet of special keys codes.ADD= u'\ue025'ALT= u'\ue00a'ARROW_DOWN= u'\ue015...
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摘要：The Alert implementation.classselenium.webdriver.common.alert.Alert(driver)Bases:objectAllows to work with alerts.Use this class to interact with aler...
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摘要：The ActionChains implementation,classselenium.webdriver.common.action_chains.ActionChains(driver)Bases:objectActionChains are a way to automate low le...
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摘要：Exceptions that may happen in all the webdriver code.exceptionselenium.common.exceptions.ElementNotSelectableException(msg=None,screen=None,stacktrace...
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摘要：The API definitions in this chapter shows the absolute location of classes. However the recommended import style is as given below:from selenium impor...
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摘要：find_element_by_id()find_element_by_name()find_element_by_class_name()find_element_by_tag_name()find_element_by_link_text()find_element_by_partial_lin...
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摘要：删除tomcat目录下的work目录中的Catalina目录就好了！
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摘要：许多应用程序中都会有日志模块，用于记录系统在运行过程中的一些关键信息，以便于对系统的运行状况进行跟踪。在.NET平台中，有非常著名的第三方开源日志组件log4net，c++中，有人们熟悉的log4cpp，而在python中，我们不需要第三方的日志组件，因为它已经为我们提供了简单易用、且功能强大的日志...
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摘要：httplib实现了HTTP和HTTPS的客户端协议，一般不直接使用，在python更高层的封装模块中（urllib,urllib2）使用了它的http实现。importhttplibconn=httplib.HTTPConnection("google.com")conn.request('get...
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摘要：urllib模块提供的上层接口，使我们可以像读取本地文件一样读取www和ftp上的数据。每当使用这个模块的时候，老是会想起公司产品的客户端，同事用C++下载Web上的图片，那种“痛苦”的表情。我以前翻译过libcurl教程，这是在C/C++环境下比较方便实用的网络操作库，相比起libcurl，Pyt...
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摘要：在用WebDriver中打开Internet Explorer访问百度的是，报下面错误：org.openqa.selenium.remote.SessionNotFoundException: Unexpected error launching Internet Explorer. Protect...
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摘要：import StringIO与from io import BytesIO的区别open()函数返回的文件对象取决于模式。当使用文本模式打开文件时，它返回一个TextIOBase的子类。当使用二进制打开时，返回的是BufferedIOBase的子类。准确细分为：可读二进制模式，返回BufferRe...
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摘要：1.自己调用命令行 pyuic4-ocodeFile.py-xyourUIfile.ui2.写一个批处理,每次双击就行了,跟你的源文件放在同一文件夹下 importosforroot,dirs,filesinos.walk('.'):forfileinfiles:iffile.endswith(...
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摘要：he Tetris game is one of the most popular computer games ever created. The original game was designed and programmed by a Russian programmerAlexey Paj...
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摘要：This is a widget that we can see in Nero, K3B, or other CD/DVD burning software.#!/usr/bin/python# -*- coding: utf-8 -*-"""ZetCode PyQt4 tutorial In t...
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摘要：TheQtGui.QBrushis an elementary graphics object. It is used to paint the background of graphics shapes, such as rectangles, ellipses, or polygons. A b...
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摘要：TheQtGui.QPenis an elementary graphics object. It is used to draw lines, curves and outlines of rectangles, ellipses, polygons, or other shapes.#!/usr...
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摘要：A colour is an object representing a combination of Red, Green, and Blue (RGB) intensity values. Valid RGB values are in the range from 0 to 255. We c...
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摘要：A point is the most simple graphics object that can be drawn. It is a small spot on the window.#!/usr/bin/python# -*- coding: utf-8 -*-"""ZetCode PyQt...
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摘要：We begin with drawing some Unicode text on the client area of a window.#!/usr/bin/python# -*- coding: utf-8 -*-"""ZetCode PyQt4 tutorial In this examp...
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摘要：In the following example, we will demonstrate how to drag & drop a button widget.#!/usr/bin/python# -*- coding: utf-8 -*-"""ZetCode PyQt4 tutorialIn t...
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摘要：In computer graphical user interfaces, drag-and-drop is the action of (or support for the action of) clicking on a virtual object and dragging it to a...
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摘要：TheQtGui.QComboBoxis a widget that allows a user to choose from a list of options.#!/usr/bin/python# -*- coding: utf-8 -*-"""ZetCode PyQt4 tutorial Th...
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摘要：AQtGui.QSplitterlets the user control the size of child widgets by dragging the boundary between the children. In our example, we show threeQtGui.QFra...
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摘要：AQtGui.QLineEditis a widget that allows to enter and edit a single line of plain text. There are undo and redo, cut and paste, and drag & drop functio...
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摘要：AQtGui.QPixmapis one of the widgets used to work with images. It is optimized for showing images on screen. In our code example, we will use theQtGui....
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摘要：AQtGui.QCalendarWidgetprovides a monthly based calendar widget. It allows a user to select a date in a simple and intuitive way.#!/usr/bin/python# -*-...
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摘要：A progress bar is a widget that is used when we process lengthy tasks. It is animated so that the user knows that the task is progressing. TheQtGui.QP...
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摘要：AQtGui.QSlideris a widget that has a simple handle. This handle can be pulled back and forth. This way we are choosing a value for a specific task. So...
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摘要：A toggle button is aQtGui.QPushButtonin a special mode. It is a button that has two states: pressed and not pressed. We toggle between these two state...
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摘要：AQtGui.QCheckBoxis a widget that has two states: on and off. It is a box with a label. Check boxes are typically used to represent features in an appl...
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摘要：TheQtGui.QFileDialogis a dialog that allows users to select files or directories. The files can be selected for both opening and saving.#!/usr/bin/pyt...
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摘要：TheQtGui.QFontDialogis a dialog widget for selecting a font.#!/usr/bin/python# -*- coding: utf-8 -*-"""ZetCode PyQt4 tutorial In this example, we sele...
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摘要：heQtGui.QColorDialogprovides a dialog widget for selecting colour values.#!/usr/bin/python# -*- coding: utf-8 -*-"""ZetCode PyQt4 tutorial In this exa...
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摘要：TheQtGui.QInputDialogprovides a simple convenience dialog to get a single value from the user. The input value can be a string, a number or an item fr...
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摘要：Objects created from aQtCore.QObjectcan emit signals. In the following example we will see how we can emit custom signals.#!/usr/bin/python# -*- codin...
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摘要：Sometimes it is convenient to know which widget is the sender of a signal. For this, PyQt4 has thesender()method.#!/usr/bin/python# -*- coding: utf-8 ...
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摘要：Events in PyQt4 are processed often by reimplementing event handlers.#!/usr/bin/python# -*- coding: utf-8 -*-"""ZetCode PyQt4 tutorial In this example...
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摘要：All GUI applications are event-driven. Events are generated mainly by the user of an application. But they can be generated by other means as well: e....
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摘要：Widgets can span multiple columns or rows in a grid. In the next example we illustrate this.#!/usr/bin/python# -*- coding: utf-8 -*-"""ZetCode PyQt4 t...
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摘要：The most universal layout class is the grid layout. This layout divides the space into rows and columns. To create a grid layout, we use theQtGui.QGri...
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摘要：Layout management with layout classes is much more flexible and practical. It is the preferred way to place widgets on a window. TheQtGui.QHBoxLayouta...
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摘要：The programmer specifies the position and the size of each widget in pixels. When you use absolute positioning, we have to understand the following li...
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摘要：In the last example of this section, we create a menubar, a toolbar and a statusbar. We also create a central widget.#!/usr/bin/python# -*- coding: ut...
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摘要：Menus group all commands that we can use in an application. Toolbars provide a quick access to the most frequently used commands.#!/usr/bin/python# -*...
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摘要：A menubar is a common part of a GUI application. It is a group of commands located in various menus.#!/usr/bin/python# -*- coding: utf-8 -*-"""ZetCode...
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摘要：Main windowTheQtGui.QMainWindowclass provides a main application window. This enables to create a classic application skeleton with a statusbar, toolb...
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摘要：The following script shows how we can center a window on the desktop screen.#!/usr/bin/python# -*- coding: utf-8 -*-"""ZetCode PyQt4 tutorial This pro...
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摘要：By default, if we click on the x button on the titlebar, theQtGui.QWidgetis closed. Sometimes we want to modify this default behaviour. For example, i...
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摘要：The obvious way to how to close a window is to click on the x mark on the titlebar. In the next example, we will show how we can programatically close...
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摘要：import htmlhtml.escape(s, quote=True)对特殊字符进行转义Convert the characters &, in string s to HTML-safe sequences. Use this if you need to display text that...
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摘要：We can provide a balloon help for any of our widgets.#!/usr/bin/python# -*- coding: utf-8 -*-"""ZetCode PyQt4 tutorial This example shows a tooltip on...
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摘要：The application icon is a small image which is usually displayed in the top left corner of the titlebar. In the following example we will show how we ...
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摘要：This is a simple example showing a small window. Yet we can do a lot with this window. We can resize it, maximise it, or minimise it. This requires a ...
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摘要：Java™ Platform, Standard Edition 6 (Java SE) 专注于提升性能，提供的增强工具可以管理和监视应用程序以及诊断常见的问题。本文将介绍 Java SE 平台中监视和管理的基本知识，并提供 Java SE 6 中相关增强的详细信息。Java SE 6 对性能进行了...
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摘要：VisualVM 是一款免费的\集成了多个 JDK 命令行工具的可视化工具，它能为您提供强大的分析能力，对 Java 应用程序做性能分析和调优。这些功能包括生成和分析海量数据、跟踪内存泄漏、监控垃圾回收器、执行内存和 CPU 分析，同时它还支持在 MBeans 上进行浏览和操作。本文主要介绍如何使用...
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摘要：在使用web_url的时候，一定注意Resource的使用，一般最好使用Resource=0，如果使用Resource=1，那么一定要修改配置。Resource AttributeIf Resource is set to 0, the URL is always downloaded during...
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摘要：字符串函数1.ASCII(str) 返回字符串str的第一个字符的ASCII值(str是空串时返回0) SELECT ASCII('2'); ->502.ORD(str) 如果字符串str句首是单字节返回与ASCII()函数返回的相同值。 如果是一个多字节字符,以格式返回((first b...
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摘要：MYSQL可以使用如下的用法：SELECT id FROM partner_broker_account_record ORDER BY id LIMIT 2, 1在limit为2的基础上加1，sql server是：select top 1 * from tbl_score where tbl_s...
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