Loops

循环

Do something many times. for / range, while, break — and the four patterns (accumulator, counter, tracking variable, while-true) that cover 95% of beginner loops. Strictly aligned with Think Python §7.1–§7.4.

Strict source: Think Python §7.1–§7.4 (Multiple Assignment · Updating Variables · The while Statement · break).

Lessons in this chapter

1. 03.00 Worked Example

   Walkthrough: Countdown

   例题: 倒计时
   python-loops

   8 min
2. 03.01 Exercise

   Sum 1..n

   1 到 n 求和
   python-loops

   15 min
3. 03.02 Exercise

   FizzBuzz

   FizzBuzz
   python-loops python-conditionals

   20 min
4. 03.03 Exercise

   Find the Max

   找最大值
   python-loops

   15 min
5. 03.04 Homework

   Homework: Collatz Steps

   作业: Collatz 步数
   python-loops python-conditionals

   30 min