⭐ 欢迎来到虫虫下载站! | 📦 资源下载 📁 资源专辑 ℹ️ 关于我们
⭐ 虫虫下载站

📄 136.html

📁 Python Ebook Python&XML
💻 HTML
字号:

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=iso-8859-1">
<META NAME="Robots" content="INDEX,NOFOLLOW">
<META HTTP-EQUIV="Pragma" CONTENT="no-cache">
<TITLE>Safari | Python Developer's Handbook -&gt; Code Examples</TITLE>
<LINK REL="stylesheet" HREF="oreillyi/oreillyN.css">
</HEAD>
<BODY bgcolor="white" text="black" link="#990000" vlink="#990000" alink="#990000" leftmargin="0" topmargin="0" marginwidth="0" marginheight="0">

<table width="100%" cellpadding=5 cellspacing=0 border=0 class="navtopbg"><tr><td><font size="1"><p class="navtitle"><a href="8.html" class="navtitle">Web Development</a> &gt; <a href="0672319942.html" class="navtitle">Python Developer's Handbook</a> &gt; <a href="128.html" class="navtitle">7. Objects Interfacing and Distribution</a> &gt; <span class="nonavtitle">Code Examples</span></p></font></td><td align="right" valign="top" nowrap><font size="1"><a href="main.asp?list" class="safnavoff">See All Titles</a></font></td></tr></table>
<TABLE width=100% bgcolor=white border=0 cellspacing=0 cellpadding=5><TR><TD>
<TABLE border=0 width="100%" cellspacing=0 cellpadding=0><TR><td align=left width="15%" class="headingsubbarbg"><a href="135.html" title="Summary"><font size="1">&lt;&nbsp;BACK</font></a></td><td align=center width="70%" class="headingsubbarbg"><font size="1"><a href="popanote.asp?pubui=oreilly&bookname=0672319942&snode=136" target="_blank" title="Make a public or private annnotation">Make Note</a> | <a href="136.html" title="Use a Safari bookmark to remember this section">Bookmark</a></font></td><td align=right width="15%" class="headingsubbarbg"><a href="138.html" title="8. Working with Databases"><font size="1">CONTINUE&nbsp;&gt;</font></a></td></TR></TABLE>
<a href="5%2F31%2F2002+4%3A38%3A10+PM.html" TABINDEX="-1"><img src=images/spacer.gif border=0 width=1 height=1></a><font color=white size=1>152015024128143245168232148039199167010047123209178152124239215162147044209058147120159192</font><a href="read1.asp?bookname=0672319942&snode=136&now=5%2F31%2F2002+4%3A38%3A10+PM" TABINDEX="-1"><img src=images/spacer.gif border=0 width=1 height=1></a><br>
<FONT><h3>Code Examples</h3>
				<h4>Parking Lot (File parkinglot.py)</h4>
					<P>This example generates a Python COM server that exposes a parking lot object. The example uses a Visual Basic graphical interface to manipulate the vehicles of this parking lot. Each vehicle is a Python Object that is also defined as a Python COM Server object.</P>

					<P>The first thing to do is to generate two clsids: one for each object.</P>

					<pre>
						
&gt;&gt;&gt; import pythoncom
&gt;&gt;&gt; print pythoncom.CreateGuid()
BD2CB7C0-3BB9-11D4-804E-0050041A5111
&gt;&gt;&gt; print pythoncom.CreateGuid()
BD2CB7C1-3BB9-11D4-804E-0050041A5111

					</pRE>

					<P>Now, we take these ids and use them to create a module.</P>

					
						<h5>
Listing 7.1 parkinglot.py</h5>
						<prE CLAss="monofont">
 1: # File: parkinglot.py
 2:
 3: from win32com.server.exception import Exception
 4: import win32com.server.util
 5:
 6: class ParkingServer:
 7:      _reg_clsid_ = '{ BD2CB7C0-3BB9-11D4-804E-0050041A5111} '
 8:      _reg_progid_ = 'Python.ParkingServer'
 9:      _public_methods_ = ['ParkVehicle', 'UnparkVehicle',
10:                 'GetVehiclesCount', 'IdentifyVehicle',
11:                 'GetLocationList']
12:
13:     def __init__(self):
14:         self.Vehicles = [Vehicle()]
15:
16:     def ParkVehicle(self, floor=1, model="", license="", color=""):
17:         VehicleToPark = Vehicle()
18:         VehicleToPark.floor = floor
19:         VehicleToPark.model = str(model)
20:         VehicleToPark.license = str(license)
21:         VehicleToPark.color = str(color)
22:         self.Vehicles.append(VehicleToPark)
23:
24:     def UnparkVehicle(self,index):
25:         del self.Vehicles[index]
26:
27:     def IdentifyVehicle(self, index):
28:         return win32com.server.util.wrap(self.Vehicles[index])
29:
30:     def GetLocationList(self):
31:         return map(lambda x:x.GetLocation(), self.Vehicles)
32:
33:     def GetVehiclesCount(self):
34:         return len(self.Vehicles)
35:
36: class Vehicle:
37:      _reg_clsid_ = '{ BD2CB7C1-3BB9-11D4-804E-0050041A5111} '
38:      _reg_progid_ = 'Python.Vehicle'
39:      _public_methods_ = ['GetLocation']
40:      _public_attrs_ = ['floor','model','license','color']
41:
42:     def __init__(self, floor=1, model = 'Dodge Neon',
                      license = 'LKS-92020', color = 'Red'):
43:         self.floor = floor
44:         self.model = model
45:         self.license = license
46:         self.color = color
47:
48:     def GetLocation(self):
49:         return 'The %s %s license %s is on the %d floor'% }
50:                   (self.color, self.model, self.license, self.floor)
51:
52: def RegisterClasses():
53:      print "Registering COM servers

⌨️ 快捷键说明

复制代码 Ctrl + C
搜索代码 Ctrl + F
全屏模式 F11
切换主题 Ctrl + Shift + D
显示快捷键 ?
增大字号 Ctrl + =
减小字号 Ctrl + -