pyqt 正则表达式例子学习

def rex01(self):

username=QtCore.QRegExp('[a-zA-Z0-9_]{2,10}')

self.names.setValidator(QtGui.QRegExpValidator(username,self))

mainname=QtCore.QRegExp("^[\w-]+(\.[\w-]+)*@[\w-]+(\.[\w-]+)+$")

self.mains.setValidator(QtGui.QRegExpValidator(mainname,self))

pooh=QtCore.QRegExp('[0-9]{11}|[\d]{,4}-[\d]{,8}')

self.poohs.setValidator(QtGui.QRegExpValidator(pooh,self))

names=QtCore.QRegExp("[^\d]+[^\u4E00-\u9FA5]*[\d]+([^\u4E00-\u9FA5]\d*)*")

self.addrs.setValidator(QtGui.QRegExpValidator(names,self))

#正则1和2

def TextRe(self):

re1=QRegExp('[\w_]{6,20}')

self.mailEdit_2.setValidator(QRegExpValidator(re1,self))

self.re2=QRegExp('(pop|smtp)*[a-zA-Z.]*[\d]{3,7}[.](com|com.cn|cn)$')

self.mailEdit.setValidator(QRegExpValidator(self.re2,self))

def _text2(self):

import string as s

text1=s.letters

text=self.mailEdit_2.text()

if text.isEmpty():

self.Prompt_2.setText(u'邮箱地址不能为空')

else:

if len(text)<6:

self.Prompt_2.setText(u'邮箱地址长度小于6')

else:

self.Prompt_2.setText(u'邮箱地址合法')

if unicode(text)[0] not in text1:

self.Prompt_2.setText(u'邮箱地址必须以字母开头')

#需要正则

def _text1(self):

text=self.mailEdit.text()

if text.isEmpty():

self.Prompt.setText(u'邮箱服务器不能为空')

else:

pop1='pop|smtp'

import re

match=re.search(pop1,unicode(text))

if not match:

self.Prompt.setText(u'必须以pop|smtp开头')

else:

if len(text)<10:

self.Prompt.setText(u'长度过小')

else:

self.Prompt.setText(u'邮箱服务器合法')

补充内容

匹配普遍意义的url

^(https?://)?([\da-z\.-]+)\.([a-z\.]{2,6})([/\w \.-]*)*/?$

匹配cn的url

^(https?://)?([\da-z\.-]+)\.cn([/\w \.-]*)*/?$

匹配google.cn的url

^(https?://)?google\.cn([/\w \.-]*)*/?$

网址：http://segmentfault.com/q/1010000000135951