学习WebDriver时，第一个程序报错如下
java.lang.Exception: org.openqa.selenium.WebDriverException: Failed to navigate to url This usually means that a call to the COM method IWebBrowser2::Navigate2() failed. (WARNING: The server did not provide any stacktrace information)
想起我的IE不是默认浏览器，试着改为默认浏览器后，程序运行OK