auto save

1.py

+# a=['2','4','14123','a']
+# # b=['audi','Bmw','Volvo','bentian','a']#根据首字母序号升序，区分大小写，大写在前
+# a.sort()#默认升序。
+# # b.sort()#默认升序。
+# print(a)
+# # print(b)
+
+# sort(reverse,key=func)
+
+# def func(e):
+#     return len(e)
+# b.sort(key=func)
+# b.sort(reverse=True,key=func)
+# print(b)
+
+
+
+
+# def func(e):
+#     return e['year']
+# cars.sort(key=func)
+# cars.sort(reverse=True,key=func)
+# print(cars)
+
+
+
+# append()
+# insert()
+# remove()
+# pop()
+# del a[1]
+# clear()
+
+# count()
+# index()
+# extend()
+# a=[1,2,3]
+# a.apeend()
+
+# a='hello orld'
+# a=a.split('o')
+
+# b=''.join(a)
+# print(type(b))
+# print(type(a))
+
+
+# car={
+#     'car1':'audi',
+#     'year1':193,
+#     'car2':'vlovo',
+#     'year2':1992
+# }
+# print(len(car))
+# car['car2']='bmw'#修改
+# car['year3']=2022#新建
+
+# for i in car:
+#     print(i)#键
+#     print(car[i])#值
+
+# for i in car.values():
+#     print(i)#键
+#     #print(car[i])#值
+
+# for i,j in car.items():
+#     print(i,j)#键
+    #print(car[i])#值
+
+# print(car)
+
+# sum=0
+# for j in range(2,102):
+#     for i in range(1,j):
+#         sum=sum+i
+# print(sum)
+
+# for i in range(31):
+#     if i*4+(30-i)*2==80:
+#         print('兔子'+str(i)+'鸡'+str(30-i))
+
+
+# thisdict =	{
+#   "brand": "Porsche",
+#   "model": "911",
+#   "year": 1963
+# }
+# thisdict.pop("model")
+# print(thisdict)
+
+# myfamily = {
+#   "child1" : {
+#     "name" : "Phoebe Adele",
+#     "year" : 2002
+#   },
+#   "child2" : {
+#     "name" : "Jennifer Katharine",
+#     "year" : 1996
+#   },
+#   "child3" : {
+#     "name" : "Rory John",
+#     "year" : 1999
+#   }
+# }
+# for i in myfamily.values():
+#     print(i['year'])
+
+
+# for i in myfamily:
+#     print(myfamily[i]['year'])
+    
+
+a={1,2,3,4,5,8}#集合是不重复的无序
+b={1,3,2,5,4,8}
+# print(a)
+# print(len(a))
+# for i in a:
+#     print(i)
+# if a==b:
+#     print('woshi ')
+
+
+
+print(a)
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