Introduction - If you have any usage issues, please Google them yourself
Modify the linked list template class, so that node data fields to the data class class object. Requirements for the establishment of a single linked list template class deep copy function, which requires node class and the students copy the class are deep copy constructor. Deep copy of which class of students is to call the copy constructor string class completed, the direct use of the default, the same destructor do not restated. And to establish a student list, the original data in the text file EXP19_2.txt.