如何在求解器运行时打印迭代？

Question

我正在努力在输出中打印时间。我想运行该程序并记下每个迭代时间。我想我缺少主体。我是编程新手。

导入itertools     将熊猫作为pd导入     导入时间

df

    nb_people   group
0   8       GROUP C
1   3       GROUP B
2   4       GROUP B
3   2       GROUP A

Answer 1

如果我理解正确，您只需要缩进打印输出，以便将其应用于循环中的所有通道，而不仅限于最后一个循环：

for i in range(0,1):
    start = time.time()
    print 'iteration: ', i

    end = time.time()

    print "Time is taken by the Solver", end-start

    f.write("Iteration: "+str(i)+','+str(end-start)+'\n') # << Extra tab at start of line here makes this happen for each pass through your for loop