python+appium清空文本框内容

import os
import unittest
from appium import webdriver
# from selenium import webdriver
from appium.webdriver.common.touch_action import TouchAction
from appium.webdriver.common.multi_action import MultiAction
from time import sleep

PATH = lambda p: os.path.abspath(
    os.path.join(os.path.dirname(__file__), p)
)
class LoginTest(unittest.TestCase):
    def setUp(self):
        desired_caps = {}
        desired_caps['platformName'] = 'Android'
        # 设置android系统版本
        desired_caps['platformVersion'] = '6.0'
        # desired_caps['deviceName'] = '777f90cb'
        desired_caps['deviceName'] = 'RKHQFYPN99999999'
        # 为true时，手机中存在引用apk，不再次安装apk
        desired_caps['autoLaunch'] = 'true'  # 是否自动启动
        desired_caps['noReset'] = 'true'
        desired_caps['newCommandTimeout'] = 20
        # 设置apk的路径
        desired_caps['app'] = PATH( 'D:\\App_TESTNG\\apps\\BiClubApp_v1.3.0.apk')
        # 设置APK包名和类名
        desired_caps['noReset'] = 'True'
        desired_caps['appPackage'] = 'com.chainedin.io.BiClubApp'
        desired_caps['appActivity'] = 'md570526dd7b8d9fe1e7e27ecbd3279627a.SplashScreen'
        # 重置输入法为系统默认
        desired_caps['resetKeyboard'] = 'true'
        # support Chinese支持中文输入
        desired_caps['unicodeKeyboard'] = 'true'
        desired_caps['noSign'] = 'true'
        # Returns abs path relative to this file and not cwd

        self.driver = webdriver.Remote('http://localhost:4723/wd/hub', desired_caps)

    def tearDown(self):
        self.driver.quit()

    def editClear(self, text):
    #     123代表光标移动到末尾
        self.driver.keyevent(123)
        for i in range(0, len(text)):
            #67退格键
            self.driver.keyevent(67)

    def test_find_elements(self):
        # pause a moment, so xml generation can occur
        sleep(2)
        print("点击法币")
        fb = self.driver.find_element_by_xpath("//android.view.View/android.widget.FrameLayout[3]/android.widget.ImageView[1]")
        fb.click()
        sleep(2)
        print("点击注册登录")
        zcdl = self.driver.find_element_by_xpath("//android.widget.Button[@text='登录/注册']")
        zcdl.click()
        sleep(3)
        print("输入用户名")
        # username = self.driver.find_element_by_xpath("//android.view.View/android.view.View[1]/android.view.View[1]/android.view.View[2]/android.view.View[1]/android.view.View[1]/android.view.View[1]/android.view.View[1]")
        qk = self.driver.find_element_by_xpath("//android.widget.EditText[@text='17800000020']").text
        username = self.driver.find_element_by_xpath("//android.widget.EditText[@text='17800000020']")
        username.click()
        #123移动光标至末尾
        self.driver.keyevent(123)
        for i in range(0, len(qk)):
            #67退格键
            self.driver.keyevent(67)
        sleep(2)
        username.send_keys(17800000020)
        sleep(2)
        print("输入密码")
        password = self.driver.find_element_by_xpath("//android.view.View/android.view.View[1]/android.view.View[1]/android.view.View[2]/android.view.View[1]/android.view.View[1]/android.view.View[2]/android.view.View[1]")
        password.click()
        password.send_keys("123456")

        sleep(3)
        print("点击登录按钮")
        dl = self.driver.find_element_by_xpath("//android.widget.Button[@text='登录']")
        dl.click()
        sleep(3)
        print("输入验证码")
        yzm = self.driver.find_element_by_xpath("//android.view.View/android.view.View[2]/android.view.View[1]/android.view.View[2]/android.widget.EditText[1]")
        yzm.send_keys(123456)
        sleep(2)
        print("点击确认按钮")
        qr = self.driver.find_element_by_xpath("//android.widget.Button[@text='确认']")
        qr.click()
        sleep(2)
        print("点击暂不设置")
        bsz = self.driver.find_element_by_xpath("//android.widget.TextView[@text='暂不设置']")
        bsz.click()
        if __name__ == '__main__':
            unittest.main()

环境：selenium+python3.5

所有内容均为一字一字码出来的，转载麻烦标明链接哦，谢谢~https://mp.csdn.net/postedit/84063814