main.py
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Step 1: 为 add 函数写断言
先定义 add(a, b)，再写两个断言检查结果。
Self-Check List
- 定义 add 函数
- 写 assert 用例
- 输出 step1 passed
Transfer Template
def add(a, b):
return a + bAfter completing this step, you should be able to independently explain and reproduce this concept, then apply it to similar problems.