python习题12，,ex121 age

python习题12，,ex121 age

ex12

1 age = input("How old are you?")2 height = input("How tall are you?")3 weight = input("How much do you weight?")4 5 print(f"So,you‘re {age} old, {height} tall and {weight} heavy.")

在终端上键入python -m pydoc input

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.    On *nix systems, readline is used if available.

*pydoc命令的用法（目前看不懂）

1. python -m pydoc input：查看纯文本帮助信息，类似于函数的帮助说明。

　　（纯文本帮助）

2. python -m pydoc atexit :在当前目录创建atexit.html

python -m pydoc -p 5000 :启动一个web服务器监听 http://localhost:500/

　　（html帮助）

3.pydoc还为__builtins__添加了一个函数help()，从而可以在解释器窗口访问同样的信息。

　　（交互式帮助）（看不懂）

*python open() 函数用于打开一个文件，创建一个file对象，相关的方法才可以调用它进行读写。

连在一起试试看

1 age = int(input("How old are you?"))2 height = int(input(f"I knew you are {age} old.How tall are you?"))3 weight = input("How much do you weight?")4 5 print(f"So,you‘re {age} old, {height} tall and {weight} heavy.")

python习题12