python编程从游戏开始系列之二：输入判断和读取配置文件

[root@centos6 chat-guess]# cat a.py
#coding=utf-8
#!/usr/bin/env python
import random
secret=random.randint(1,100)
print secret
tries=0
while tries < 6:
guess=raw_input("Please input your guess: ")
#       print guess
if guess.isdigit():
guess=int(guess)
if guess > secret:
print "Your guess is too high,please low a litter \n"
elif guess < secret:
print "Your guess is too low ,please high a litter \n"
else:
print "Congratulations you ,your guess is right..."
print "Luck you this time... \n"
break
else:
print "Please input number ,not string,thanks... \n"
tries=tries+1
if tries == 6 :
print "No more guesses!Better luck next time for you"
print "Now tell your the number is was",secret

guess

=

int

(guess)

对输入的值进行强制类型转换成int型

下面就可以了最简单的数字之间的比较，当猜测的数字大于，小于和等于系统生成的数字时，分别打印不同的提示，当猜中的时候，并且次数小于6次的时候，退出循环。

假如超过6次还没有猜中，也会退出循环，并且打印最后的提示。

好了，下面开始讲解如何把定义的变量的值写在配置文件里，这样的方式的好处是可以灵活的定义变量的值，当需要修改的时候，不需修改源代码的脚本，直接修改配置文件即可。

我们定义一个配置文件:config.ini,python中有一个模块可以读取ini的配置文件中的定义的各种值，下面我们来看看我们定义的这个配置文件：

[root@centos6 chat-guess]# cat config.ini[GuessTriesTime]MaxTime:6

[root@centos6 chat-guess]# cat c.py#coding=utf-8#!/usr/bin/env pythonimport randomfrom ConfigParser import ConfigParserConfigFile='config.ini'config=ConfigParser()config.read(ConfigFile)#MaxTries=config.get('GuessTriesTime','MaxTime')#MaxTries=int(MaxTries)MaxTries=config.getint('GuessTriesTime','MaxTime')print MaxTriessecret=random.randint(1,100)print secrettries=0while tries < MaxTries:guess=raw_input("Please input your guess: ")#       print guessif guess.isdigit():guess=int(guess)if guess > secret:print "Your guess is too high,please low a litter \n"elif guess < secret:print "Your guess is too low ,please high a litter \n"else:print "Congratulations you ,your guess is right..."print "Luck you this time... \n"breakelse:print "Please input number ,not string,thanks... \n"tries=tries+1if tries == MaxTries :print "No more guesses!Better luck next time for you"print "Now tell your the number is was",secret

下面主要简单解释几行代码：