🐍 综合练习：学生信息

扩展：把 (姓名, 分数) 元组作键，统计同名出现次数。

# ========================================
# 示例：元组综合练习
# ========================================
students = [
    ('小明', 10, 92),
    ('小红', 11, 88),
    ('小刚', 10, 76)
]

for name, age, score in students:
    print(f'{name}({age}岁) 分数:{score}')

# 找最高分
best = max(students, key=lambda s: s[2])
name, age, score = best
print('最高分', name, score)