Linked List

我也應景寫了一篇Linked List，若有須要請Mail給我。

功能要求
1 InsertAfter (find address)
2 InsertAfter (find number)
3 InsertAfter (find data)
4 InsertAfter (find final data)
5 Delete (find address)
6 Delete (find number)
7 Delete (find data)
8 Delete (find final data)

結構

struct Node
{   
    char data[20];
    struct Node *link;
};