输入update mysql.user set password=password(‘root’) where user='root’时提示ERROR 1054 (42S22): Unknown column ‘password’ in ‘field list’，原来是mysql数据库下已经没有password这个字段了，password字段改成了
authentication_string

所以更改语句替换为update MySQL.user set authentication_string=password(‘root’) where user=‘root’ ;即可