C#系统实战（3）：获取提示信息：“不能为空”

当输入的教师信息不完整时，某些必填项没有填，那么将会出现提示“不能为空”，下面我们用自动化实现获取这个文本信息。

用.text来获取：text2=driver.find_element_by_id('ContentPlaceHolder1_RequiredFieldValidator2').text

注：下面用到的login模块在上一节中已说明，此处不再赘述。

#coding =utf-8
from selenium import webdriver
import time
import csv,login,unittest
from selenium.webdriver.common.alert import Alert  #导入Alert模块，这个必须全写上
class Warning(unittest.TestCase):
    def setUp(self):
        self.driver=webdriver.Firefox()
        self.base_url="http://localhost:5151/exam5/Login.aspx"
    def test_warning(self):
        driver=self.driver
        driver.get(self.base_url)
        login.login(self)
        driver.find_element_by_id('TreeView1t1').click()
        #读取文件
        source=open('teacherinfo.csv','r')
        data=csv.reader(source)
        #
        for key in data:
            #清空输入框，每次把输入框清空一下，更加严谨
            driver.find_element_by_id('ContentPlaceHolder1_txtTeaNum').clear()  #key[]几代表第几列
            driver.find_element_by_id('ContentPlaceHolder1_txtTeaName').clear()
            driver.find_element_by_id('ContentPlaceHolder1_txtTeaPWD').clear()
            print(key,end=',')
            #输入信息
            driver.find_element_by_id('ContentPlaceHolder1_txtTeaNum').send_keys(key[0])  #key[]几代表第几列
            driver.find_element_by_id('ContentPlaceHolder1_txtTeaName').send_keys(key[1])
            driver.find_element_by_id('ContentPlaceHolder1_txtTeaPWD').send_keys(key[2])
            driver.find_element_by_id('ContentPlaceHolder1_btnAdd').click()
             #取出提示框中的信息
            try:
                a=Alert(driver)  #实例化Alert对象
                print('  Alert:%s'%a.text) #打印警告信息5
                a.accept() #接受警告（相当于点击“确定”按钮）
                driver.get("http://localhost:5151/exam5/admin/teaInfoAdd.aspx")
            #取出文本框后的提示信息：“不能为空”
            except:
                text1=driver.find_element_by_id('ContentPlaceHolder1_RequiredFieldValidator1').text#用.text方法
                print('  text1:%s'%text1,end=',')
                text2=driver.find_element_by_id('ContentPlaceHolder1_RequiredFieldValidator2').text
                print('  text2:%s'%text2,end=',')
                text3=driver.find_element_by_id('ContentPlaceHolder1_RequiredFieldValidator3').text
                print('  text3:%s'%text3)
                
                
        source.close()
    def tearDown(self):  #关闭火狐
        self.driver.quit()
          
if __name__=="__main__":
    unittest.main()