.. _hw2:

Problem Set 1
======================
TASK I:
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完成下列字符串练习：

* https://www.w3schools.com/python/python_strings.asp
* https://www.w3schools.com/python/python_strings_slicing.asp
* https://www.w3schools.com/python/python_strings_concatenate.asp

TASK I无需提交。

TASK II:
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完成codingbat的任务，每道题完成需要截图：

* https://codingbat.com/prob/p182144
* https://codingbat.com/prob/p132290
* https://codingbat.com/prob/p148853
* https://codingbat.com/prob/p184816
* https://codingbat.com/prob/p160545

TASK III:
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Implement a function called replace_space() in Python that prompts the user for input and then outputs that same input, replacing each space with ... (i.e., three periods).

.. image:: terminal.gif
  :width: 400

提交方式
-----------

* 见https://replit.com/team/SCLS-CS2023/HW4

* 作业截止时间：10月12日晚上10点。