数据表的首字段为ID，是整个表的主键。如果要挖掘你自己的表，请注意要满足条件，呵呵，其实这是很容易满足的啊。-The first field of the data table for the ID, the entire table' s primary key. If you want to dig your own table, please note that to meet the conditions, in fact, it is very easy to satisfy.