一、python学习笔记-基本数据类型-集合 python """可变集合set 1、把不同的元素组合在一起叫做集合 2、如果元素有相同的只会显示一个 3、集合是无序的(无法通过索引取值) 4、不能作为字典的键 5、可变集合是可变类型,可以修改的 """ """不可变集合frozenset 1、可以作为字典的键 2、不可变集合是不可变类型...
>>> L = ['abc','ABD','aBe']>>> L.sort(key=str.lower)#Normalize to lowercase 忽略大小写>>>L ['abc','ABD','aBe']>>> L = ['abc','ABD','aBe']>>> L.sort(key=str.lower,reverse=True)#Change sort order 反过来>>>L ['aBe','ABD','abc'] Bisect 模块:一个有趣的python排...
1. 开始 pymongo是python版的连接库,最新版为3.7.2。 文档地址:https://pypi.org/project/pymongo/ 使用文档:http://api.mongodb.com/python/current/tutorial.html The PyMongo distribution contains tools for interacting with MongoDB database from Python. The bsonpackage is an implementation of theBSON ...
--save 导入 const nodemailer = require("nodemailer"); 关键点 配置 nodemailer.createTransport 的参数，指定 服务地址，端口号，验证的账户和密码 配置 mailOptions ，from , to 指定发送和目标，邮件内容等。 编写代码示例 "use strict"; const nodemailer = require("nodemailer"); const Mai ...
Lowercase L (l). Uppercase I (as in Ignore). Uppercase O (as in Oh). All identifiers used in a standard library must beASCII-compatible. The Python guidance on package and module names focuses on short names with lowercase letters, relying on other characters where needed for rea...
| Return True if all cased characters in S are lowercase and there is | at least one cased character in S, False otherwise. | isupper(...) | S.isupper() -> bool | Return True if all cased characters in S are uppercase and there is ...
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Python sample The following Flask and Django Python code samples implement a decorator namedauthorize_certificatethat can be used on a view function to permit access only to callers that present a valid client certificate. It expects a PEM formatted certificate in theX-ARR-ClientCertheader and use...
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python. More than one expression can be added but each expression should be preceded by -c. EXAMPLE: -c V(N001)>4 -c parameter==1 -c I(V1)<0.5 -f FORMAT, --format=FORMAT Format string for the X axis. Example: -f %3.4f -t TITLE, --title=TITLE Title to appear on the top...