做了个程控电阻箱
https://blog.csdn.net/m0_37782115/article/details/130003526?ops_request_misc=%257B%2522request%255Fid%2522%253A%2522170169169316800182758052%2522%252C%2522scm%2522%253A%252220140713.130102334.pc%255Fall.%2522%257D&request_id=170169169316800182758052&biz_id=0&utm_medium=distribute.pc_search_result.none-task-blog-2~all~first_rank_ecpm_v1~rank_v31_ecpm-1-130003526-null-null.142^v96^pc_search_result_base4&utm_term=%E7%BB%A7%E7%94%B5%E5%99%A8%E5%AE%9E%E7%8E%B0%E7%A8%8B%E6%8E%A7%E7%94%B5%E9%98%BB%E5%8D%A1&spm=1018.2226.3001.4187