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Python TKinter Gui: Toplevel window

#from pp3e Chapter 9.3
#############################################################################
# popup three new window, with style
# destroy() kills one window, quit() kills all windows and app; top-level
# windows have title, icon, iconify/deiconify and protocol for wm events;
# there always is an app root window, whether by default or created as an
# explicit Tk() object; all top-level windows are containers, but never
# packed/gridded; Toplevel is like frame, but new window, and can have menu;
#############################################################################
    
from Tkinter import *
root = Tk()                                                     # explicit root
    
trees = [('The Larch!',          'light blue'),
         ('The Pine!',           'light green'),
         ('The Giant Redwood!', 'red')]
    
for (tree, color) in trees:
    win = Toplevel(root)                                        # new window
    win.title('Sing...')                                        # set border
    win.protocol('WM_


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1¡¢strÀàÐÍ¿ÉÒÔÀí½âΪһ¸ö¶þ½øÖÆblock£¬»òmultibyte
2¡¢multibyte_str.decode("<multibyte_encode_method>")  -> unicode
3¡¢unicode_str.encode("<multibyte_encode_method>")  -> multibyte_str(binary block)
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Python Socket±à³Ì

1£¬±àдServer.py
import socket
s=socket.socket(socket.AF_INET,socket.SOCK_DGRAM)
s.bind(('localhost',8081))
while True:
    data,addr=s.recvfrom(1024)
    print 'receive:',data,'from',addr
2£¬±àдClient.py
import socket
s=socket.socket(socket.AF_INET,socket.SOC ......

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Ê×ÏÈ£¬Ð¡²ËÔÚCÅ̽¨ÁËÒ»¸öÎı¾Îĵµ file.txt,ÊäÈëËĸö×Ö£ºÎÒÊÇС²Ë¡£
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>>> file=open("c:\\file.txt","r")
>>> data=file.read()
>> ......

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Óë¶ÑÕ»ÀàËÆ£¬Í¨¹ýpythonµÄÁбíÀàÐÍÀ´ÊµÏÖ£¬²Î¿¼ help(list)
shoplist=['apple','mango','carrot','banana']
print 'I have',len(shoplist),'items to purchase'
print 'these items are:'
for item in shoplist:
print item,
shoplist.append('rice')
print 'my shopping list is now', shoplist
shoplist. ......
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