PythonTalk03.tex

\input{LatexConfig.tex}

\begin{document}

\PreFirstFrame
\begin{frame} [fragile]
	\centerline{\fontsize{42}{42}\selectfont Python Talk 3}
\end{frame}
\PostFirstFrame

\begin{frame} [fragile]
	\frametitle{复习}
	\linespread{1.5}
	\begin{columns}[T]
		\begin{column}[T]{.7\textwidth}
			\begin{itemize}
			\item 如何创建一个元素\inlinePython{tuple}？
			\item \inlinePython{tuple}和\inlinePython{list}有什么区别？
			\item 如何合并\inlinePython{dict}？
			\item 如何通过\inlinePython{'1234567890'}得到\inlinePython{'2468'}？
			\end{itemize}
		\end{column}
		\begin{column}[T]{.3\textwidth}
			\begin{itemize}
			\item \inlinePython{(1, )}
			\item \inlinePython{list}可变
			\item \inlinePython{update()}
			\item \inlinePython{[1: 8: 2]}
			\end{itemize}
		\end{column}
	\end{columns}
\end{frame}

\begin{frame} [fragile]
	\frametitle{循环和判断}
	\linespread{2}
	\begin{columns}[T]
		\begin{column}[T]{.5\textwidth}
			\begin{itemize}
			\item 循环（PythonTalk3）
				\begin{itemize}
				\item \inlinePython{for}
				\item \inlinePython{while}
				\end{itemize}
			\item 循环控制（PythonTalk4）
				\begin{itemize}
				\item \inlinePython{break}
				\item \inlinePython{continue}
				\end{itemize}
			\end{itemize}
		\end{column}
		\begin{column}[T]{.5\textwidth}
			\begin{itemize}
			\item 判断（PythonTalk4）
				\begin{itemize}
				\item \inlinePython{if}
					\begin{itemize}
					\item \inlinePython{else}
					\item \inlinePython{elif}
					\end{itemize}
				\end{itemize}
			\end{itemize}
		\end{column}
	\end{columns}
\end{frame}

\begin{frame} [fragile]
	\frametitle{\inlinePython{while}}
	\linespread{1.5}
	\begin{columns}[T]
		\begin{column}[T]{.5\textwidth}
			\begin{itemize}
			\item 语法
			\begin{lstlisting}[style=pythonstyle, gobble=12]
			while Expression :
				Code
				Code
			Code
			\end{lstlisting}
			\end{itemize}
		\end{column}
		\begin{column}[T]{.5\textwidth}
			\begin{itemize}
			\item 对比C语言
			\begin{lstlisting}[style=cstyle, gobble=12]
			while (Expression)
			{
				Code;
				Code;
			}
			Code;
			\end{lstlisting}
			\end{itemize}
		\end{column}
	\end{columns}
\end{frame}

\begin{frame} [fragile]
	\frametitle{\inlinePython{while}例子}
	\linespread{1.25}
	\begin{itemize}
	\item 求出3至35的奇数和
	\begin{lstlisting}[style=pythonstyle, gobble=4, texcl]
	i = 3
	s = 0
	while i <= 35 :
		s += i
		i += 2
	print(s)
	\end{lstlisting}
	\end{itemize}
\end{frame}

\begin{frame} [fragile]
	\frametitle{\inlinePython{while}练习}
	\linespread{1.5}
	\begin{itemize}
	\item 计算以下数列的和
		\begin{itemize}
		\item \inlinePython{1, 3, 5, 7, 9, 11, ... , 95, 97, 99}
		\item \inlinePython{1, 2, 4, 8, 16, ... , 256, 512, 1024}
		\end{itemize}
	\item 用\inlinePython{while}计算出这个字符串
		\begin{itemize}
		\item \inlinePython{'1,3,5,7,9,11,13,15,17,19,21,'}
		\item 提示：\inlinePython{str(1)}的结果是\inlinePython{'1'}；用字符串加法
		\end{itemize}
	\end{itemize}
\end{frame}

\begin{frame} [fragile]
	\frametitle{\inlinePython{for}}
	\linespread{1.5}
	\begin{columns}[T]
		\begin{column}[T]{.5\textwidth}
			\begin{itemize}
			\item 语法
			\begin{lstlisting}[style=pythonstyle, gobble=12]
			for i in Object :
				Code
				Code
			Code
			\end{lstlisting}
			\end{itemize}
		\end{column}
		\begin{column}[T]{.5\textwidth}
			\begin{itemize}
			\item 对比C语言（差别很大）
			\begin{lstlisting}[style=cstyle, gobble=12]
			for (int i = 0; i < N; i += 1)
			{
				Code;
				Code;
			}
			Code;
			\end{lstlisting}
			\end{itemize}
		\end{column}
	\end{columns}
\end{frame}

\begin{frame} [fragile]
	\frametitle{\inlinePython{for}例子}
	\linespread{1.25}
	\begin{itemize}
	\item 计算\inlinePython{[3, 1, 4, 1, 5, 9, 2, 6, 5]}的元素和
	\begin{lstlisting}[style=pythonstyle, gobble=4, texcl]
	s = 0
	for i in [3, 1, 4, 1, 5, 9, 2, 6, 5] :
		s += i
	print(s)
	\end{lstlisting}
	\end{itemize}
\end{frame}

\begin{frame} [fragile]
	\frametitle{\inlinePython{sum}函数}
	\linespread{1.25}
	\begin{itemize}
	\item 语法
		\begin{itemize}
		\item \inlinePython{sum(ListOfNumbers)}
		\end{itemize}
	\item 举例
		\begin{itemize}
		\item \inlinePython{sum([1, 3, 5])}
		\end{itemize}
	\item 对比
		\begin{lstlisting}[style=pythonstyle, gobble=8, texcl]
		s = 0
		l = [1, 3, 5]
		for i in l :
			s += i
		print(s)
		\end{lstlisting}
	\end{itemize}
\end{frame}

\begin{frame} [fragile]
	\frametitle{\inlinePython{range}函数}
	\linespread{1.5}
	\begin{itemize}
	\item 尝试以下代码
		\begin{itemize}
		\item \inlinePython{for i in range(10): print(i)}
		\item \inlinePython{for i in range(3, 10): print(i)}
		\item \inlinePython{for i in range(3, 10, 2): print(i)}
		\end{itemize}
	\end{itemize}
\end{frame}

\begin{frame} [fragile]
	\frametitle{\inlinePython{for}练习}
	\linespread{1.5}
	\begin{itemize}
	\item 计算以下等差数列的和
		\begin{itemize}
		\item \inlinePython{1, 2, 3, 4, 5, 6, 7, ... 1365, 1366}
		\item \inlinePython{11, 13, 15, 17, 19, ... 95, 97, 99}
		\end{itemize}
	\item 用\inlinePython{for}计算并打印这个字符串
		\begin{itemize}
		\item \inlinePython{'1,3,5,7,9,11,13,15,17,19,21,'}
		\end{itemize}
	\end{itemize}
\end{frame}

\PreLastFrame
\begin{frame}
	\centerline{\fontsize{32}{32}\selectfont 感谢参加此次活动}
\end{frame}

\newpage
\end{document}