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# 037
fileName = ''
while 1:
fileName = raw_input("Input a file name:")
if fileName == 'q':
break
try:
f = file(fileName, 'r')
print 'Opened a file.'
except:
print 'There is no file named', fileName
# end of try and except
f.close()
# end of while
output£º
Input a file name:haha
There is no file named haha
Input a file name:txt
There is no file named txt
Input a file name:1
There is no file named 1
Input a file name:037_Exception.py
Opened a file.
Input a file name:q
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# 004
# ÀûÓÃÈýÒýºÅ(''' or """)¿ÉÒÔָʾ¶àÐÐ×Ö·û´®
print '''line1
line2
line3'''
# ÁíÍ⣬Ä㻹¿ÉÒÔÔÚÈýÒýºÅÖÐÈÎÒâʹÓõ¥ÒýºÅºÍË«ÒýºÅ
print ''' "What's up? ," he replied.'''
# ·ñÔò£¬ÄãºÃʹÓÃתÒå·ûÀ´ÊµÏÖͬÑùµÄЧ¹û
# »¹ÊÇʹÓÃÈýÒýºÅºÃ£¬²»È»¾ÍÆÆ»µÁËÊÓ¾õÃÀÁË
print ' \"Wha ......
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marshal²¢²»ÊÇÒ»¸öͨÓõÄÄ£¿é£¬ÔÚijЩʱºòËüÊÇÒ»¸ö²»±»ÍƼöʹÓõÄÄ£¿é£¬ÒòΪʹÓÃmarshalÐ ......
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# 022
listNum1 = [1, 3]
listNum2 = [2, 4]
listStr1 = ['a', 'c']
listStr2 = ['b', 'd']
# ÁбíµÄºÏ²¢
list1 = listNum1 + listStr1
for ele in list1:
print ele
print '\n'
# ÅжÏÁбíÖÐÊÇ·ñ°üº¬Ä³ÔªËØ
print 'b' in list1
print 1 in list1
# ɾ³ýij¸öÔªËØ
for ele in ......
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# 023
# Tuple(ÔªËØ×é)ÊDz»¿É±äµÄÁбí
tuple1 = (1, 2, 3)
print tuple1
tuple2 = (tuple1, 4, 5, 6) # Ò»¸öÔªËØ×é¿ÉÒÔ×÷ΪÁíÍâÒ»¸öÔªËØ×éµÄÔªËØ
print tuple2 # ²¢ÇÒÄܹ»ÔÚ´æ´¢µÄʱºò±£³ÖÔʼµÄÂß¼¹ØÏµ
for ele in tuple2:
print ele
print '\n'
for ele in tuple2[0]:
pr ......
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# 035
class Person:
population = 0 #Õâ¸ö±äÁ¿ÊÇÊôÓÚÕû¸öÀàµÄ
def __init__(self, name):
self.name = name
print '³õʼ»¯ %s' % self.name
Person.population += 1
# end of def
def __del__(self):
print '%s says bye.' % self. ......