METHOD1 ||--o LIST: "创建列表" METHOD2 ||--o LIST: "创建列表" METHOD3 ||--o LIST: "创建列表" METHOD1 { string name "列表推导式" } METHOD2 { string name "range函数" } METHOD3 { string name "循环" } 结语 通过本文的介绍,我们了解到了在Pyt
erDiagram STRING { string content } LIST { List string items } LIST ||--o{ STRING : contains 序列图 接下来,我们用序列图来展示使用append()方法向列表添加字符串的过程: AppendMethodListUserAppendMethodListUserCreate a new listCall append("Hello")Add "Hello" to the listCall append("World")Ad...
#tuple类似于list,只是一旦创建不可改变tuple1=('zhangsan','lisi','wangwu')print(tuple1)print(tuple1[1])print(tuple1[-1])#只有一个int型的tupletuple2=(1,)print(tuple2[0])#tuple中有list的情况,list中的元素可以进行增删改tuple3=('zhangsan','lisi',['wangwu','zhaoliu'])print(tuple3)print...
String, int and boolean data types: list1 = ["apple","banana","cherry"] list2 = [1,5,7,9,3] list3 = [True,False,False] Try it Yourself » A list can contain different data types: Example A list with strings, integers and boolean values: ...
we have to call it on the string that’ll be used for joining. In this case, we’re using a string with a space in it. The method receives a list of strings and returns one string with each of the strings joined by the initial string. Let’s check its functionality with one simple...
1、list:列表 2、reverse:反向 3、true:真 4、false:假 5、append:附加 6、extend:扩展 7、insert:插入 8、pop:取出 9、remove:移除 10、del(delete):删除 11、clear:清除 12、sort:排序 八、集合 1、set:集合/设置 2、add:添加 3、update:更新 ...
def create_phone_num(num): all_phone_nums = set() # 存放生成的电话号码 while True: # 因为set会自动去重,因此死循环生成电话号码,直到等于num个号码停止 start = random.choice(['135', '136', '137']) # 存放前3位的号段,从中随机取一个 ...
print("Create number list") for value in range(1,5): print(value) num_list=list(range(2,11,2)) print(num_list) num_list1=[] for value in range(1,6): num_list1.append(value**2) print(num_list1) print("列表解析实现以上相同功能:") ...
{e}")# 主流程if__name__ =='__main__':# 1. 创建Bucketcreate_bucket(bucket)# 2. 上传文件upload_file(bucket,'test-string-file',b'Hello OSS, this is a test string.')# 3. 下载文件download_file(bucket,'test-string-file')# 4. 列出Bucket中的对象list_objects(bucket)# 5. 删除Bucket...
virtualenv - A tool to create isolated Python environments. File Manipulation Libraries for file manipulation. mimetypes - (Python standard library) Map filenames to MIME types. pathlib - (Python standard library) An cross-platform, object-oriented path library. path.py - A module wrapper for ...