习题11——提问

源代码：

print("How old are you?", end=' ')
age = input()
print("How tall are you?", end=' ')
height = input()
print("How much do you weight?", end=' ')
weight = input()

print(f"So, you're {age} old, {height} tall and {weight} heavy.")

运行结果：

How old are you? 30
How tall are you? 172cm
How much do you weight? 65kg
So, you're 30 old, 172cm tall and 65kg heavy.

习题12——提示别人

源代码：

age = input("How old are you? ")
height = input("How tall are you? ")
weight = input("How much do you weigh? ")

print(f"So, you're {age} old, {height} tall and {weight} heavy.")

运行结果：

How old are you? 30
How tall are you? 172cm
How much do you weigh? 65kg
So, you're 30 old, 172cm tall and 65kg heavy.

习题13——参数、解包和变量

源代码：

from sys import argv
# read the WYSS section for how to run this
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)

运行结果：

ValueError                                Traceback (most recent call last)
Input In [8], in <cell line: 3>()
      1 from sys import argv
      2 # read the WYSS section for how to run this
----> 3 script, first, second, third = argv
      5 print("The script is called:", script)
      6 print("Your first variable is:", first)

ValueError: not enough values to unpack (expected 4, got 3)

注意需在终端运行并传入参数

习题14——提示和传递

源代码：

from sys import argv

script, user_name = argv
prompt = '> '

print(f"Hi {user_name}, I'm the {script} script.")
print("I'd like to ask you a few questions.")
print(f"Do you like me {user_name}?")
likes = input(prompt)

print(f"Where do you live {user_name}?")
lives = input(prompt)

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

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.
""")

运行结果：

1deMacBook-Pro:data-python a1$ python test.py Ken

Hi Ken, I'm the test.py script.

I'd like to ask you a few questions.

Do you like me Ken?

> yes

Where do you live Ken?

> chengdu

What kind of computer do you have?

> macbookpro

Alright, so you said yes about liking me.

You live in chengdu. Not sure where that is.

And you have a macbookpro computer. Nice.

习题15——读取文件

源代码：

from sys import argv

script, filename = argv

txt = open(filename)

print(f"Here's your file {filename}:")
print(txt.read())

print("Type the filename again:")
file_again = input("> ")

txt_again = open(file_again)

print(txt_again.read())

运行结果：

1deMacBook-Pro:data-python a1$ python3 test.py 1.txt

Here's your file 1.txt:

This is stuff I typed into a file.

It is really cool stuff.

Lots and lots of fun to have in here.

Type the filename again:

> 1.txt

This is stuff I typed into a file.

It is really cool stuff.

Lots and lots of fun to have in here.

注：要在终端中运行，且需要提前创建好待打开的文件