字典的循环遍历

dict1 = {'name': 'TOM','age': 20,'gender': '男'}
#  1. 遍历字典的key
for key in dict1.keys():
    print(key)

#  2. 遍历字典的value
for value in dict1.values():
    print(value)

#  3. 遍历字典中的元素
for item in dict1.items():
    print(item)

#  4. 遍历键值对（拆包）
for key, value in dict1.items():
    # print(key)
    # print(value)
    # 目标： key=value
    print(f"{key}={value}")