笨办法学python3练习代码13-14：argv参数变量的学习

ex13.py  argv参数的学习

 #argv:参数变量(argument variable),这是一个标准的编程术语，在其他语言中也可可以看到.argument可译为： 参数

 #如果参数是用户在执行命令时就要输入，用argv.命令行参数都是字符串
 #如果参数是在脚本运行过程中需要用户输入 ，用input()
 from sys import argv
 #read the WYSS section  for how to run this  

 #将argv解包（unpack）,把参数赋值给4个变量：script，first,second,third 。例如执行时 python ex13.py 1  2  3 分别对应参数script,first,second,third.
 script,first,second,third = argv
 #python ex13.py 1 22 33 与script,first,second,third一一对应

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

 #与input（）结合使用
 x = input("what's your name ?.")
 print(x)

ex14.py

 from sys import argv
 script, user_name = argv

 #把提示符赋值给prompt变量
 prompt = '>>>>'         #将字符串'>>>>' 赋给变量prompt

 #print(f"字符串")，前面的f表示print为格式化输出
 print(f"Hi {user_name}, I'm the {script} script.")
 print("I'd like to ask you a few question.")
 print(f"Do you like me {user_name}?")
 likes = input(prompt) #原样输出prompt = '>>>>'这个提示符后，读取用户自己输入的信息

 print(f"Where do you live {user_name}?")
 lives = input(prompt) #原样输出prompt = '>>>>'这个提示符后，读取用户自己输入的信息

 print("What kind of computer do you have ?")
 computer = input(prompt)

 #多行字符串格式化打印
 print(f"""
 Alright,so you said:{likes} about liking me.
 You live in {lives}. Not sure where that is.
 And you have a  {computer} computer .Nice
 """)