<jupyter_start><jupyter_text>Lecture01 Hello, Python第01讲 你好，Python  Problem 问题描述 1. Write and run a python code line and let the computer output a sentence "I am learning Math with python programming." 编写运行一行程序代码在屏幕上输出 “我正在用Python编程学数学。" 2. Introduce Jupyter Lab. 介绍Jupyter Lab交互式环境 3. Calculate the following expressions using Python. 用Python语言计算下面算式的结果：   - $1+2=$   - $3.14\times2\times5=$   - $99\times97+99\times3=$   - $100\div 20=$   - $1+2+3+\cdots+97+98+99=$   - $2\times2\times2\times2\times2\times2=$  Mathematics 数学背景- $+$, $-$, $\times$, $\div$  Prerequisites 预备知识 1. In python, $\times$ is replaced by `*` and $\div$ is replaced by `/`. Python中乘法和除法符号分别被`*`和`/`替代2. Command `print` 命令3. role of a pair of parentheses`()` after a command. 一条命令后成对小括号`()`的作用4. role of (double) quotes `""`, `''`. 单双引号的作用5. what is a string? 字符串是什么?  Solution 编程求解<jupyter_code>print('I am learning Math with Python programming.')
print("我正在用Python编程学数学。")<jupyter_output>我正在用Python编程学数学。
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