建立长度为n的顺序表SeqList，长度n通过和n个数据元素通过键盘输入。

要求：

1）通过调用插入函数，建立一个长度为n的顺序表类的对象，新插入的元素始终插入到第0号位置；

2）在顺序表SeqList中增加一个删除函数，要求删除顺序表中等于item的所有元素。-The establishment of length n of the sequence table SeqList, the adoption of the length n and n data elements input through the keyboard. Requirements: 1) inserted by calling the function, the establishment of a length n sequence table object, the newly inserted element is always inserted into the position of the No. 0　2) in sequence table SeqList increase a delete function, seeking to delete the order table equal to all the elements of the item.