2016.8.21猜数游戏

import random
secret=random.randint(1,99)
guess=0
tries=0
print secret
print"Alex,I have a secret,It is a number from 1 to 99,you have 6 tries."
while guess!=secret and tries<6:
    guess=input("Enter you guess number:")
    if guess<secret:
        print " too low"
    elif guess>secret:
        print"too hight"
    tries+=1
if guess==secret:
    print"congratulations"
else:
    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。