Character set 'utf-8' is not a compiled character set and is not specified

　　当出现“Character set 'utf-8' is not a compiled character set and is not specifie”的错误时，将mysql安装目录下的my.ini文件的default-character-set=utf-8更改为default-character-set=utf8即可，简单来说就是将"utf-8"更改为"utf8"即可。