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查询Tags标签： alex，共有 24条记录-
python小知识
python小知识 a = 20; print(type(a))#数字类mag = """my name is alex i am from Fujian"""; #多引号可以多行使用a = ["Alex","Jack","Rain","WuSir","BlackGirl"] a[4] = "白雪…
2021/10/4 11:10:54 人评论 次浏览 -
集合-多集合操作（交集、并集、差集、判定）
1、交集 intersection # 交集 a = {Alex,Bob,Tom,Alice,John} b = {John,Egon,Celia,Alex} print(a & b) # 取交集 c = a.intersection(b) # 取交集 print(c)输出： {John, Alex} {John, Alex}2、并集 union # 并集 a = {Alex,Bob,Tom,Alice,John} b = {John,Egon,C…
2021/9/11 23:36:36 人评论 次浏览 -
集合-多集合操作（交集、并集、差集、判定）
1、交集 intersection # 交集 a = {Alex,Bob,Tom,Alice,John} b = {John,Egon,Celia,Alex} print(a & b) # 取交集 c = a.intersection(b) # 取交集 print(c)输出： {John, Alex} {John, Alex}2、并集 union # 并集 a = {Alex,Bob,Tom,Alice,John} b = {John,Egon,C…
2021/9/11 23:36:36 人评论 次浏览 -
2021-7-17 Boredom
难度 1500 题目 CodeForces:Boredomtime limit per test 1 secondmemory limit per test 256 megabytesAlex doesnt like boredom. Thats why whenever he gets bored, he comes up with games. One long winter evening he came up with a game and decided to play it.G…
2021/7/17 23:13:46 人评论 次浏览 -
2021-7-17 Boredom
难度 1500 题目 CodeForces:Boredomtime limit per test 1 secondmemory limit per test 256 megabytesAlex doesnt like boredom. Thats why whenever he gets bored, he comes up with games. One long winter evening he came up with a game and decided to play it.G…
2021/7/17 23:13:46 人评论 次浏览 -
Python全栈之路：string字符串常用方法
大小写转换 print("name is Alex".capitalize()) # 转为首字母大写 ->Name is alex print("name is Alex".title()) # 转为标题形式 ->Name Is Alex print("Name".upper()) # 转大写 ->NAME print("Name".lower()) …
2021/7/12 11:08:08 人评论 次浏览 -
Python全栈之路：string字符串常用方法
大小写转换 print("name is Alex".capitalize()) # 转为首字母大写 ->Name is alex print("name is Alex".title()) # 转为标题形式 ->Name Is Alex print("Name".upper()) # 转大写 ->NAME print("Name".lower()) …
2021/7/12 11:08:08 人评论 次浏览 -
深浅
浅copy 例子1：1 data = {2 "name":"alex",3 "age":18,4 "scores":{5 "语文":130,6 "数学":60,7 "英语":98,8 }9 } 10 d2 = data 11 data["age&quo…
2021/7/11 23:17:35 人评论 次浏览 -
深浅
浅copy 例子1：1 data = {2 "name":"alex",3 "age":18,4 "scores":{5 "语文":130,6 "数学":60,7 "英语":98,8 }9 } 10 d2 = data 11 data["age&quo…
2021/7/11 23:17:35 人评论 次浏览
