以下是一个示例代码，演示了如何捕捉对象并检查它们的相等性：

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

    def __eq__(self, other):
        if isinstance(other, Person):
            return self.name == other.name and self.age == other.age
        return False

    def __str__(self):
        return f"Person(name='{self.name}', age={self.age})"

person1 = Person("Alice", 25)
person2 = Person("Bob", 30)
person3 = Person("Alice", 25)

# 检查相等性
print(person1 == person2)  # 输出: False
print(person1 == person3)  # 输出: True

# 捕捉对象并检查相等性
people = [person1, person2, person3]
for person in people:
    if person == person1:
        print(f"Caught: {person}")

输出结果将是：

False
True
Caught: Person(name='Alice', age=25)