DELIMITER $$

DROP PROCEDURE IF EXISTS `test`.`sp_test`$$

CREATE PROCEDURE `test`.`sp_test`(IN table_name varchar(255),IN total int)
BEGIN
  set @stmt = concat('select * from ',table_name,' limit ?');
  prepare s1 from @stmt;
  set @s = total;
  execute s1 using @s;
  deallocate prepare s1;
END$$

DELIMITER ;

调用：
call sp_test('表名',数量);

------解决方案--------------------
顶楼上的，prepare