selenium+python 对输入框的输入处理方法

if result_num>1:   
print "Begin to change user infomations"   
driver.find_element_by_xpath("//*[@id='tbodyUserInfo']/tr/td[8]/img[2]").click()   
driver.implicitly_wait(15)   
driver.find_element_by_id("uname").clear()   
driver.find_element_by_id("uname").send_keys("MoondyLi")   
driver.find_element_by_id("truename").clear()   
driver.find_element_by_id("truename").send_keys("chenchen")   
driver.find_element_by_id("updateUser").click()