"笨办法"学python习题13：参数、解包和变量问题

按照书中代码输入：
from sys import argv

script, first, second, third= argv

print "The script is called:", script
print "Your first variable is:", first
print "Your second variable is:", second
print "Your third variable is:", third

得到下面的错误提示：
Traceback (most recent call last):
  File "C:\Python27\Lib\site-packages\pythonwin\pywin\framework\scriptutils.py", line 326, in RunScript
    exec codeObject in __main__.__dict__
  File "C:\Python27\train\ex13.py", line 4, in <module>
    script, first, second, third= argv
ValueError: need more than 1 value to unpack
最后这句应该是错误的关键吧？可是不会改，求各位高手明示！

1.保存脚本文件
2.执行：python script.py  first  second third

xueqiang41 发表于 2016-1-22 09:04
1.保存脚本文件
2.执行：python script.py  first  second third

感谢您的帮助！
遗憾的是，执行：python script.py  first  second third后的错误提示如下：
Traceback (  File "<interactive input>", line 1
    python script.py first second third
                ^
SyntaxError: invalid syntax
似乎不对症啊

python ex13.py first 2nd 3rd
运行时 后面要带参数  
script, first, second, third= argv
运行前就要输入三个参数 把三个参数分别赋值到first, second, third

abe025 发表于 2016-1-27 12:27
python ex13.py first 2nd 3rd
运行时 后面要带参数  
script, first, second, third= argv

习题13 怎么输入参数  具体过程可以展示出来吗  试了很多遍还是不行  谢谢来