python dict.item()方法遍历字典

a = {'张无忌': 25, '赵敏': 24}

print(a.items())

print(type(a.items()))

for item in a.items():  # item对象由元组构成

    print(item)

    print(type(item))

for key, value in a.items():  # 元组由键值对构成

    print(key, value)

    print(type(key), type(value))