Jaeger_Java的博客

项目场景： 自己搭建个人网站,安装MySql时候遇到的问题 问题描述 The GPG keys listed for the "MySQL 5.7 Community Server" repository are already installed but they are not correct for this package. Check that the correct key URLs are configured for this repository. Failing package

笔记 def getYesterday(): # 获取昨天日期的字符串格式的函数 #获取今天的日期 today = datetime.date.today() #获取一天的日期格式数据 oneday = datetime.timedelta(days=1) #昨天等于今天减去一天 yesterday = today - oneday #获取昨天日期的格式化字符串 yesterdaystr = yesterday.strftime('%Y-%m-%d')

笔记 def get_datas(sql): # 一个传入sql导出数据的函数 # 跟数据库建立连接 conn = pms.connect(host='实例地址', user='用户',passwd='密码', database='库名', port=3306, charset="utf8") # 使用 cursor() 方法创建一个游标对象 cursor cur =