Python版猜数字游戏

#一些东西采用了偷懒的处理方法。。。感觉写Python比较舒服的地方是括号
#少，不习惯的地方是错误处理方法与perl,c,shell都不一样。其它，刚开始
#学，还没太多感慨，Python确实值得学，可是用师兄的话来说，我俩在进行
#“速成”式的学习，写一个小程序，帮助记忆一下基本语法吧。

#!/usr/bin/python
import random
orig_num=[11,11,11,11]

def generate_rand():
    i=0
    while i<4:
        rand=random.randrange(0,10)
        if i==0 and rand==0:
           continue
        else:
            for j in range(0,i):
                if rand==orig_num[j]:
                    rand=11
                    break
            if rand<10:
                orig_num[i]=rand
                i=i+1
   # print orig_num
generate_rand()
i=1
while i<9:
    a=0
    b=0
    guess_input=raw_input('Please input the number you guessed: ')
    if len(guess_input)!=4:
        print 'You should input a integer less than 10000 and greater than 1000'
        continue
    try:
        guess=int(guess_input)
    except ValueError:
        print 'You should enter an integer less than 10000 and greater than 1000!'
        continue
    check_guess=[guess/1000,guess%1000/100,guess%100/10,guess%10]
    for j in range(0,4):
        for k in range(0,4):
            if orig_num[j]==check_guess[k]:
                if j==k:
                    a=a+1
                else:
                    b=b+1
    i=i+1
    if a==4:
        print 'You win! ^&^'
        break
    else:
        print '%d A %d B'%(a,b)
if i>8:
    print 'You lose. The number is %d%d%d%d' %(orig_num[0],orig_num[1],orig_num[2],orig_num[3])