01-recombination.ipynb

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   "source": [
    "# 计算思维：通过拆解和重组学习"
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    "**Computational Thinking** is the thought processes involved in formulating problems and their solutions so that the solutions are represented in a form that can be effectively carried out by an information-processing agent [Cuny, Snyder, Wing, 2010]\n"
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    "## 计算思维的实现过程\n",
    "\n",
    "- 定义问题\n",
    "- 寻找解决方案\n",
    "- 任务分解\n",
    "- 重组\n",
    "- 自动化实现\n"
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    "“The creation of any sort of novelty in art, science, or practical life–consists to a substantial extent of a recombination of conceptual and physical materials that were previously in existence” (Nelson and Winter,1982, p.130)"
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   "source": [
    "## 每个人都曾经掌握计算思维"
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    "想一下我们小时候是如何拆玩具的！\n",
    "\n",
    "\n",
    "- 定义问题: 玩具汽车是如何运动的？\n",
    "- 寻找解决方案：拆！\n",
    "- 任务分解：先拆掉螺丝、然后打开、观察\n",
    "- 重组：重新组装起来\n",
    "- 自动化实现：日常生活中一般没有这一步\n"
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   "source": [
    "## 编程也是一个拆开黑盒子并重组的过程！"
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    "- 定义问题: 如何计算一个小说的单词数量？\n",
    "- 寻找解决方案：使用字符串的处理方法\n",
    "- 任务分解：读取小说、去掉标点符号、然后按照空格”分词“、最后列表中的元素数量\n",
    "- 重组：组装起来，写成一个函数\n",
    "- 自动化实现：调用函数"
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   "source": [
    "## 如果遇到问题怎么办？"
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    "- 首先，明确问题是什么。\n",
    "    - Python在出错的时候一般都会告诉我们问题是什么。\n",
    "- 其次，尝试理解问题\n",
    "    - 很多人看到出错就懵了，似乎完美的人生不能容许污点。\n",
    "    - 使用`help`函数\n",
    "- 再次，如果搞不懂可要学会使用搜索引擎\n",
    "    - 很多同学在提问题之前没有搜索过。\n",
    "- 此外，拆开代码找到解决办法后重新组装起来\n",
    "    - 多做案例分析\n",
    "        - 如果是for循环中的代码出问题，可以使用`break`阻断并使用`print`输出结果以便检查\n",
    "    "
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