MySql - syntax error: unexpted "user" (Single quoted text)

create table 'user'(
'id' int(10) not null,
'username' varchar(20) not null,
'password' varchar(20) not null,
primary key ('id'),
unique key 'username');

错误原因：  去掉 单引号， 改为如下

mysql> create table user(
    -> id int(10) not null,
    -> username varchar(20) not null unique,
    -> password varchar(20) not null,
    -> primary  key (id),
    -> unique key ulist (username)
    -> );
Query OK, 0 rows affected, 1 warning (0.32 sec)