我正在尝试验证具有以下格式的useragent
Mozilla/5.0 (Linux; U; Android <android>; <locale>; <device> Build/<build>) AppleWebKit/<webkit> (KHTML, like Gecko) Version/4.0 Mobile Safari/<safari>
用户代理可以是
Mozilla/5.0 (Linux; U; Android 4.2.2; en-us; AFTB Build/JDQ39) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30
到目前为止，我的正则表达式是
Mozilla\/5\.0 \(Linux; U; Android (\d+\.)?(\d+\.)?(\*|\d+); [a-z]{2}-[a-z]{2} (AFTA|AFTN|AFTS|AFTB|AFTT|AFTM|AFTKMST12|AFTRS) Build\/([A-Z0-9])\) AppleWebKit\/(\d+\.)?(\*|\d+) \(KHTML, like Gecko\) Version\/4\.0 Mobile Safari\/(\d+\.)?(\*|\d+)
测试：https://regex101.com/r/nXKYBB/1
但是不匹配。怎么了？
答案 0 :(得分：1)
您错过了# Import 3rd party libraries
from PyQt4 import QtGui, QtCore
from PyQt4.QtCore import QObject, pyqtSignal
import time
import pyqtgraph
# Import python standard modules
import sys
# This file holds the MainWindow
import Plotter
# Variables
T = [0]
R = [0]
# Disregard this function
def ReadChannel(channel):
# some process
return channel
# -----------------------------------------------------------------
# -----------------------------------------------------------------
class Helper(QtCore.QObject):
Sinal = QtCore.pyqtSignal(str, tuple)
def Emt(self, arg1, arg2):
self.Sinal.emit(arg1, arg2)
class Ctrldr(QtGui.QMainWindow, Plotter.Ui_MainWindow):
def __init__(self):
super(self.__class__, self).__init__()
self.setupUi(self)
self.QOutput.clicked.connect(self.Calculo)
self.helper = Helper(self) # <--- object
# Plotting
@QtCore.pyqtSlot(str, tuple)
def Imprime(self, name, ptm):
global T, R, W
x, y = ptm
R.append(y)
self.graphicsView.plotItem.plot(T, R, pen='b')
# Calculations
def Calculo(self):
global T
t = time.clock()
T.append(t)
Read = ReadChannel(0)
self.helper.Sinal.emit("Sensor", (t, Read))
Read = str(Read)
self.QResult.setText(Read)
# -----------------------------------------------------------------
if __name__ == '__main__':
app = QtGui.QApplication(sys.argv)
PID = Ctrldr()
helper = Helper()
helper.Sinal.connect(PID.Imprime)
PID.show()
app.exec_()
之后的;和en-de之后的+：
[A-Z0-9]请参见regex demo
请注意，如果您不打算以后再使用那些捕获的子值，并使用Mozilla\/5\.0 \(Linux; U; Android (\d+\.)?(\d+\.)?(\*|\d+); [a-z]{2}-[a-z]{2}; (AFTA|AFTN|AFTS|AFTB|AFTT|AFTM|AFTKMST12|AFTRS) Build\/([A-Z0-9]+)\) AppleWebKit\/(\d+\.)?(\*|\d+) \(KHTML, like Gecko\) Version\/4\.0 Mobile Safari\/(\d+\.)?(\*|\d+)
来匹配空白，那么最好匹配非捕获组(?:...)，而不是捕获组。
此外，如果您打算匹配整个字符串，请用\s和^包裹模式。