笨办法13参数、解包、变量_草稿

加分习题3：将 raw_input 和 argv 一起使用，让你的脚本从用户手上得到更多的输入。

from sys import argv

script, first, second, third = argv #试了一下，这里的第一个参数script可以随便改成啥，不影响运行结果
'''
print "The script is called:", script
print "Your first variable is:", first
print "Your second variable is:", second
print "Your third variable is:", third
'''

raw_input("The script is called: "), script
raw_input("Your first variable is: "), first
raw_input("Your second variable is: "), second
raw_input("Your third variable is: "), third

不知道是不是这个意思，总觉得怪怪的，先这样后面再改！

运行结果如下，需要手动输入变量名：

【下班啦下班啦！！

==============下面重写！==============

from sys import argv

script, first, second, third = argv
prompt = ">"

print "please enter the script name:"
script = raw_input(prompt)

print "please enter the first variable:"
first = raw_input(prompt)

print "please enter the second name:"
second = raw_input(prompt)

print "please enter the third name:"
third = raw_input(prompt)

print """
The script is called:%r
The first variable is:%r
The second variable is:%r 
The third variable is:%r
""" % (script, first, second, third)

运行结果：

ps：但是怎么才能把引号去掉呢。。 埃玛以后再说吧！
来解答！ 重新翻看了之前的第6课，只要把%r换成%s就没有引号啦！！

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20170914 按照22课练习来复习

argv 和 raw_input()的区别：要求用户输入的位置不同。在命令行输入参数用argv.，在脚本执行的过程中输入参数用raw_input()