Python函数：实现字符串处理与小题信息提取

```python def zi_fu_chuan(a, b, c, d=1): if d == 1: return a.find(b) elif d == 2: return len(a.split('\n')) elif d == 3: print(f"{str(c).zfill(5)}:{a.split('\n')[c - 1]}") elif d == 4: options = a.split('\n')[c - 1].split() print('；'.join([options[i] for i in range(1, len(options), 2)])) ``` ######[AI写代码神器 | 134点数解答 | 2024-11-14 12:49:17]