python代码：
self.driver.find_element_by_id("com.chemao.certification.debug:id/et_car_vin").send_keys("11111111111111111")
pycharm提示错误：
selenium.common.exceptions.WebDriverException: Message: Parameters were incorrect. We wanted {"required":["value"]} and you sent ["text","value","id","sessionId"]
appium提示错误：
解决办法1：将send_keys 改为set_value() 亲测好用，比send_keys()的输入速度要快
解决办法2：selenium的版本降低，具体的解决办法见http://blog.163.com/lucia_gagaga/blog/static/2647680192016829744684/