遍历字典的key
dict1 = {'name': 'Tom', 'age': 20, 'gender': '男'}
for key in dict1.keys():
print(key)
遍历字典的value
dict1 = {'name': 'TOM', 'age': 20, 'gender': '男'}
for value in dict1.values():
print(value)
遍历字典的元素
dict1 = {'name': 'TOM', 'age': 20, 'gender': '男'}
for item in dict1.items():
print(item)
遍历字典的键值对
dict1 = {'name': 'TOM', 'age': 20, 'gender': '男'}
# xx.items(): 返回可迭代对象，内部是元组，元组有2个数据
# 元组数据1是字典的key，元组数据2是字典的value
for key, value in dict1.items():
# print(key)
# print(value)
# 目标： key=value
print(f'{key}={value}')
