摘要：win10 下 git bash: ssh root@192.168.204.130 Permission denied, please try again. 原因是： vim /etc/ssh/sshd_config 不允许root ssh远程登陆；可以换一个普通账户登录 https://blog 阅读全文

摘要：https://www.hackerxone.com/2021/06/02/how-install-mysql-57-ubuntu-2004-lts/ mysql> GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY '123456' ;Q 阅读全文

摘要：""" 数据类型 """ # # # int # num1 = 1 # # float # num2 =1.1 # print(type(num1)) # print(type(num2)) # # # str ,字符串，特点：数据都带引号，单引、双引均可 # a = 'hello world' # 阅读全文

摘要：https://www.bilibili.com/read/cv12103468/ http://www.javatiku.cn/pycharm/66.html 阅读全文