在迭代Python3中使用Max()

# 数字列表
numbers = [1, 2, 3, 4, 5]
print(max(numbers))  # 输出: 5

# 字符串列表
strings = ['apple', 'banana', 'cherry']
print(max(strings))  # 输出: 'cherry'

# 元组列表
tuples = [(1, 'a'), (2, 'b'), (3, 'c')]
print(max(tuples, key=lambda x: x[0]))  # 输出: (3, 'c')

# 自定义对象列表
class Person:
    def __init__(self, name, age):
        self.name = name
        self.age = age

    def __repr__(self):
        return f'{self.name} ({self.age})'

people = [Person('Alice', 25), Person('Bob', 30), Person('Charlie', 20)]
print(max(people, key=lambda x: x.age))  # 输出: Bob (30)

numbers = []
if numbers:
    print(max(numbers))
else:
    print("列表为空")

class Person:
    def __init__(self, name, age):
        self.name = name
        self.age = age

people = [Person('Alice', 25), Person('Bob', 30), Person('Charlie', 20)]
print(max(people, key=lambda x: x.age))  # 输出: Bob (30)