Introduction - If you have any usage issues, please Google them yourself
The realization of arbitrary list with two-way median of positive and negative integers or decimal addition, subtraction and multiplication, as well as documents related to the operation. Document Description: given a*. txt file as the first number, b*. txt for the second number, the result of requests adder is stored in the add*. txt, the subtraction result is stored in the sub*. txt in , multiply the result is stored in the mult*. txt, the* for the corresponding one set of data.