加分習題3：將 raw_input 和 argv 一起使用，讓你的腳本從用戶手上得到更多的輸入。

 1 from sys import argv
 2 
 3 script, first, second, third = argv #試了一下，這裏的第一個參數script可以隨便改成啥，不影響運行結果
 4 ‘‘‘
 5 print "The script is called:", script
 6 print "Your first variable is:", first
 7 print "Your second variable is:", second
 8 print "Your third variable is:", third
 
 9 ‘‘‘
10 
11 raw_input("The script is called: "), script
12 raw_input("Your first variable is: "), first
13 raw_input("Your second variable is: "), second
14 raw_input("Your third variable is: "), third

不知道是不是這個意思，總覺得怪怪的，先這樣後面再改！

運行結果如下，需要手動輸入變量名：

==============下面重寫！==============

 1 from sys import
 
 argv
 2 
 3 script, first, second, third = argv
 4 prompt = ">"
 5 
 6 print "please enter the script name:"
 7 script = raw_input(prompt)
 8 
 9 print "please enter the first variable:"
10 first = raw_input(prompt)
11 
12 print "please enter the second name:"
13 second = raw_input(prompt)
14 
15
 
 print "please enter the third name:"
16 third = raw_input(prompt)
17 
18 print """
19 The script is called:%r
20 The first variable is:%r
21 The second variable is:%r 
22 The third variable is:%r
23 """ % (script, first, second, third)

運行結果：

ps：但是怎麽才能把引號去掉呢。。 埃瑪以後再說吧！
來解答！ 重新翻看了之前的第6課，只要把%r換成%s就沒有引號啦！！

20170914 按照22課練習來復習

argv 和 raw_input()的區別：要求用戶輸入的位置不同。在命令行輸入參數用argv.，在腳本執行的過程中輸入參數用raw_input()

笨辦法13參數、解包、變量_草稿