exercise 12

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

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

练习

1. In Terminal, where you normally run python3.6 to run your scripts, type pydoc input . Read whatit says. If you’re on Windows try python3.6 -m pydoc input instead.
2. Get out of pydoc by typing q to quit.
3. Look online for what the pydoc command does.
4. Use pydoc to also read about open , file , os , and sys . It’s alright if you do not understand those;

答案

1. Help on built-in function input in module builtins:
   input(prompt=None, /)
   Read a string from standard input. The trailing newline is stripped.

   The prompt string, if given, is printed to standard output without a
   trailing newline before reading input.

   If the user hits EOF (*nix: Ctrl-D, Windows: Ctrl-Z+Return), raise EOFError.

2. 在命令行界面输入以下代码
   python -m pydoc input
   即可查询input函数用法
   可尝试查询open、file、os、sys等含义
   按q退出pydoc