python 打印dict的key与value

dict_name = {'张胜男': 1, '李斯': 2, '王薇': 3}

# 打印 key
for i in dict_name:
    print(i)

# 打印 value
for i in dict_name.values():
    print(i)

# 打印key，value
for i,j in dict_name.items():
    print(i,j)