1、定义：对于函数中的多个返回数据，例如元组、列表或者字典，直接获取里面数据的过程
2、例子：
def test():
return 10,20,30
res = test()
print(type(res))
a,b,c = res
print(a,b,c)
# 对list拆包
a = [1,2,3,4]
a1,*a2,a3=a
print(a1,a2,a3)
#对字典拆包，只会对字典中的key进行拆
dic = {"name":"wushuang","age":30,"sex":"1","school":"xx"}
name,*other,school=dic
print(name,other,school)
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