我试图理解不同的接口，在Selenium中实现接口和方法的类。
我可以理解，接口SearchContext是由接口WebDriver继承的，而该接口又由不同的类（如ForefoxDriver和其他类）实现。
findElement是SearchContext接口的一部分，由FirefoxDriver实现（因为fireFoxDriver实现了WebDriver）。
还有另一个名为“按”的类，它具有一组嵌套的子类。
现在，findElement的语法如下：
driver.findElement(By.name("q"));
我无法理解传递给findElement方法的参数，因为它是作为参数传递的对象，还是在findElement方法内部调用了其他函数？
任何人都可以澄清传递给此函数findElement的参数的确切含义吗？
谢谢。
最佳答案
（Java）根据Selenium 2 API，
#findElement():
Find the first WebElement using the given method. This method is affected by the 'implicit wait' times in force at the time of execution. The findElement(..) invocation will return a matching row, or try again repeatedly until the configured timeout is reached. findElement should not be used to look for non-present elements, use findElements(By) and assert zero length response instead.
Specified by: findElement(...) in SearchContext
Parameters:
by The locating mechanism
Returns:
The first matching element on the current page
Throws:
NoSuchElementException - If no matching elements are found
See Also:
org.openqa.selenium.By
org.openqa.selenium.WebDriver.Timeouts
findElement()接受一个参数。 By类的对象。让我们看一下By类。By.className : Finds elements based on the value of the "class" attribute.
By.cssSelector : Finds elements via the driver's underlying W3 Selector engine.
By.id : a By which locates elements by the value of the "id" attribute.
By.linkText : a By which locates A elements by the exact text it displays
By.name : a By which locates elements by the value of the "name" attribute.
By.partialLinkText : a By which locates A elements that contain the given link text
By.tagName : a By which locates elements by their tag name
By.xpath : a By which locates elements via XPath
简而言之，这些都是可以找到所需要素的所有方法。这完全取决于您选择的哲学。我个人总是使用
By.cssSelector。关于java - 了解 Selenium 中的方法findElement，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/20129399/