包含内容:
1. selenium-server-standalone-3.4.0
2. geckodriver-v0.18.0 (32位,64位)
3. geckodriver-v0.17.0 (32位,64位)
4. chromedriver
selenium3后对火狐浏览器驱动使用geckodriver
开始设置
System.setProperty("webdriver.gecko.driver", "path/geckodriver.exe");
WebDriver driver = new FirefoxDriver();