该程序主要是产生spice形式的大型纯电阻网络，结果会以“out.txt”(当然这个可以改)文本输出（见example）,可用于对spice性能的测试。-The program is mainly produce spice in the form of large-scale pure resistor network, the result will be "out.txt" (Of course, this can be changed) text output (see example)