本文实例讲述了Python实现去除代码前行号的方法。分享给大家供大家参考。具体实现方法如下：

复制代码 代码如下:# -*- coding: utf-8 -*-
import wx
class MainWindow(wx.Frame):
    def __init__(self, parent, id):
        wx.Frame.__init__(self, parent, id,
        u'去除代码前行号的Python小工具 - wxPython版 - Develop by Yanxy')
        self.textBox = wx.TextCtrl(self, 1, style=wx.TE_MULTILINE,size=(600,600))
        self.butOK = wx.Button(self, label=u"去除行号")
        self.butLeft = wx.Button(self, label=u"去除左侧一个字符")
        self.Bind(wx.EVT_BUTTON, self.CutLineNum, self.butOK)
        self.Bind(wx.EVT_BUTTON, self.CutLeftChar, self.butLeft)
        self.Bind(wx.EVT_CLOSE, self.OnCloseWindow)
        self.sizer = wx.BoxSizer(wx.HORIZONTAL)
        self.sizer.Add(self.textBox,1,wx.EXPAND)
        self.sizer.Add(self.butOK)
        self.sizer.Add(self.butLeft)
        self.SetSizer(self.sizer)
        self.SetAutoLayout(1)
        self.sizer.Fit(self)
        self.Show(True)
    def OnCloseWindow(self, event):
        self.Destroy()
    def CutLineNum(self, event):
        multiStr = unicode(self.textBox.GetValue()).splitlines(1)
        outStr = u''
        for singleStr in multiStr:
            singleStr = singleStr.lstrip()
            i=0
            for charStr in singleStr:
                if charStr.isdigit():
                    i += 1
                elif i>0:
                    singleStr = singleStr[i:]
                    break
                else:
                    break
            outStr += singleStr
        self.textBox.SetValue(outStr)
    def CutLeftChar(self, event):
        outStr = u''
        multiStr = unicode(self.textBox.GetValue()).splitlines(1)
        for singleStr in multiStr:
            singleStr = singleStr[1:]
            outStr += singleStr
        self.textBox.SetValue(outStr)
if __name__ == '__main__':
    app = wx.PySimpleApp()
    frame = MainWindow(parent=None, id=-1)
    app.MainLoop()
del app

希望本文所述对大家的Python程序设计有所帮助。