初学Python，把遇到的问题总结出来，如果其它初学者有遇到同样的问题，可参考！
from selenium import webdriver
driver=webdriver.Ie()
driver.get(‘https://www.baidu.com‘)
问题一：
Traceback (most recent call last):
File "C:/Python27/Lib/test1.py", line 5, in <module>
driver=webdriver.Ie()
File "C:\Python27\lib\site-packages\selenium\webdriver\ie\webdriver.py", line 55, in __init__
desired_capabilities=capabilities)
File "C:\Python27\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 90, in __init__
self.start_session(desired_capabilities, browser_profile)
File "C:\Python27\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 177, in start_session
response = self.execute(Command.NEW_SESSION, capabilities)
File "C:\Python27\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 236, in execute
self.error_handler.check_response(response)
File "C:\Python27\lib\site-packages\selenium\webdriver\remote\errorhandler.py", line 194, in check_response
raise exception_class(message, screen, stacktrace)
WebDriverException: Message: Unexpected error launching Internet Explorer. Protected Mode settings are not the same for all zones. Enable Protected Mode must be set to the same value (enabled or disabled) for all zones.
问题原因：保护模式的值不一致
解决方法：所有的mode都要设置一致，要么都选，要么都不选
问题二：
Traceback (most recent call last):
File "C:/Python27/Lib/test1.py", line 5, in <module>
driver=webdriver.Ie()
File "C:\Python27\lib\site-packages\selenium\webdriver\ie\webdriver.py", line 55, in __init__
desired_capabilities=capabilities)
File "C:\Python27\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 90, in __init__
self.start_session(desired_capabilities, browser_profile)
File "C:\Python27\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 177, in start_session
response = self.execute(Command.NEW_SESSION, capabilities)
File "C:\Python27\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 236, in execute
self.error_handler.check_response(response)
File "C:\Python27\lib\site-packages\selenium\webdriver\remote\errorhandler.py", line 194, in check_response
raise exception_class(message, screen, stacktrace)
WebDriverException: Message: Unexpected error launching Internet Explorer. Browser zoom level was set to 110%. It should be set to 100%
问题原因：浏览器被放大了
解决方法：设置为100%
问题三：
>>> from selenium import webdriver
>>> driver=webdriver.Firefox()
Traceback (most recent call last):
File "<pyshell#1>", line 1, in <module>
driver=webdriver.Firefox()
File "C:\Python27\lib\site-packages\selenium\webdriver\firefox\webdriver.py", line 85, in __init__
keep_alive=True)
File "C:\Python27\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 90, in __init__
self.start_session(desired_capabilities, browser_profile)
File "C:\Python27\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 177, in start_session
response = self.execute(Command.NEW_SESSION, capabilities)
File "C:\Python27\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 234, in execute
response = self.command_executor.execute(driver_command, params)
File "C:\Python27\lib\site-packages\selenium\webdriver\remote\remote_connection.py", line 401, in execute
return self._request(command_info[0], url, body=data)
File "C:\Python27\lib\site-packages\selenium\webdriver\remote\remote_connection.py", line 432, in _request
resp = self._conn.getresponse()
File "C:\Python27\lib\httplib.py", line 1045, in getresponse
response.begin()
File "C:\Python27\lib\httplib.py", line 409, in begin
version, status, reason = self._read_status()
File "C:\Python27\lib\httplib.py", line 365, in _read_status
line = self.fp.readline(_MAXLINE + 1)
File "C:\Python27\lib\socket.py", line 476, in readline
data = self._sock.recv(self._rbufsize)
error: [Errno 10054] An existing connection was forcibly closed by the remote host
问题原因：火狐浏览器版本太新了
解决方法：安装一个版本比较旧的版本，问题解决！