《笨办法学Python》 第32课手记

the_count = [1, 2, 3, 4, 5]
fruits = ['apples', 'oranges', 'pears', 'apricots']
change = [1, 'pennise', 2, 'dimes', 3, 'quarters']

# this first kind of for-loop goes through a list
for number in the_count:
   print "This is the_count %d" % number

# same as above
for fruit in fruits:
   print "A fruit of type: %s" % fruit

# also we can go through mixed lists too
# notice we have to use %r since we don't know what's in it
for i in change:
   print "I got %r" %i

# we can also build lists, first start with an empty one
elements = []

# then use the range function to do 0 to 5 counts
for i in range(0, 6):
   print "Adding %d to the list." % i
   # append is a function that lists understand
   elements.append(i)

# now we can print them out too
for i in elements:
   print "Element was: %d" % i

for judgement:
   sentence1
   sentence2
   ...