insert values (` !== ", ` !== ')

INSERT INTO t_users (`t_username`, `t_password`, `t_name`, `t_email`) VALUES (`qqqqq`, `3bad6af0fa4b8b330d162e19938ee981`, `qqqq`, `qqqq`)
报错：  #1054 - Unknown column 'qqqqq' in 'field list'

用
 INSERT INTO t_users (`t_username`, `t_password`, `t_name`, `t_email`) VALUES ("qqqqq", "3bad6af0fa4b8b330d162e19938ee981", "qqqq", "qqqq")
或者
INSERT INTO t_users (`t_username`, `t_password`, `t_name`, `t_email`) VALUES ('qqqqq', '3bad6af0fa4b8b330d162e19938ee981', 'qqqq', 'qqqq')
执行成功

总结：插入值引号用"或'，不能用` 。(` !== ", ` !== ')