1 import random
2 secret=random.randint(1,99)
3 guess=0
4 tries=0
5 print secret
6 print"Alex,I have a secret,It is a number from 1 to 99,you have 6 tries."
7 while guess!=secret and tries<6:
8 guess=input("Enter you guess number:")
9 if guess<secret:
10 print " too low"
11 elif guess>secret:
12 print"too hight"
13 tries+=1
14 if guess==secret:
15 print"congratulations"
16 else:
17 print "no more tries"
1.关于tries+=1，在python中，语句块不会单独引进新的作用域，tries还是全局变量，while中改变tries会使tries变量的值改变。
2.逻辑判断。（1）guess！=secret并且tries<6.（2）guess==secret，（3）tries>=6。当（1）不满足时，有（2）（3）两种情况。