【例2.2】你好世界
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说明
输出中文短句"你好，世界。"
输入格式
无
输出格式
你好，世界。
样例
无你好，世界。
小“蒙新”的家庭作业12.28-1.3
- Status
- Done
- Problem
- 15
- Open Since
- 2025-12-28 0:00
- Deadline
- 2026-1-31 23:59
- Extension
- 24 hour(s)