cantor

代码说明：

  该函数实现了cantor三分集的生成，例如输入cantor(0,0,1,0)即可产生[0,1]区间的三分集(The function implements the generation of the cantor ternary set, for example, enter the cantor (0,0,1,0) to generate the third set of the interval [0,1] )