例题 首先，我们通过单纯法来求解该例题 新建“data.txt”文件存放 2 1 1 0 0 0 0 0 2 -1 1 0 0 -2 1 -1 1 0 1 0 2 0 1 -1 0 0 1 1 import numpy as np def pivot(d,bn): l = list(d[0][:-2]) jnum = l.index(max(l)) #转入编号 m = [] for i in range(bn): if d[i][jnum] ==