计算机中整数都有一定的范围，对一些需要用到任意大的整数的应用，需要一种解决方案。本方案为用单链表实现的任意大的整数，可以实现输入输出操作、加法操作和赋值操作。-Integer in the computer has a certain range, on the need to use any integer applications, the need for a solution. The program for arbitrarily large integer, single linked list can input and output operations, addition and assignment.