'''This is a multi-line string. This is the first line.
This is the second line.
"What's your name" I asked.
He said "Bond, James Bond."
'''

"This is the first sentence.This is the second sentence."

Int型   Number = 0
字符串型 String = ‘'
Dict型  dict = {}

i = 5
 print 'Value is', i
print 'I repeat, the value is', i

number = 23
guess = int(raw_input('Enter an integer : '))
 
if guess == number:
  print 'Congratulations, you guessed it.' # New block starts here
  print "(but you do not win any prizes!)" # New block ends here
elif guess < number:
  print 'No, it is a little higher than that' # Another block
  # You can do whatever you want in a block ...
else:
  print 'No, it is a little lower than that'
  # you must have guess > number to reach here
 
print 'Done'
# This last statement is always executed, after the if statement is executed
 
if 'a' in name:
  print 'Yes, it contains the string "a"'

number = 23
running = True
while running:
  guess = int(raw_input('Enter an integer : '))
  if guess == number:
    print 'Congratulations, you guessed it.'
    running = False # this causes the while loop to stop
  elif guess < number:
    print 'No, it is a little higher than that'
  else:
    print 'No, it is a little lower than that'
else:
  print 'The while loop is over.'
  # Do anything else you want to do here
print 'Done'

for i in range(1, 5):
print i
等价于
for i in range(5):
print i

while True:
  s = raw_input('Enter something : ')
  if s == 'quit':
    break
  print 'Length of the string is', len(s)
print 'Done'

while True:
  s = raw_input('Enter something : ')
  if s == 'quit':
    break
  if len(s) < 3:
    continue
print 'Input is of sufficient length'