该文件是一种改进差分算法的研究，包括改进算法程序和CEC 2013测试函数程序，并且算法已经通过了CEC 2013标准测试函数测试。(This file is a kind of improved differential algorithm, including the improved algorithm program and CEC 2013 problems, and the algorithm has tested by CEC 2013 problems.)