mysql导入数据库，提示“#1231 – Variable ‘character_set_client’ can’t be set to the value of ‘NULL”
解决方法：打开.sql文件，再末尾找到以下注释，删除
/*!40101 SET CHARACTER_SET_CLIENT=@OLD_CHARACTER_SET_CLIENT */;
/*!40101 SET CHARACTER_SET_RESULTS=@OLD_CHARACTER_SET_RESULTS */;
/*!40101 SET COLLATION_CONNECTION=@OLD_COLLATION_CONNECTION */;