p数组的长度为4，每次进入if条件时都会递增k。您需要在if条件中添加一个检查或在外部循环中重置k。

例如：

    
      import numpy as np
m=2  # machines
n= 4  # number of jobs
p= np.array([1,2,3,4])  # processing times
iTimemax = np.sum(p)
Initialisation
iTime = 0
k= 0
iRow = 0  # the iRowth job of the machine
mM=np.zeros((n,m))
for i in range (iTimemax):
    for j in range (m):
        if np.sum(mM[:,j])  <= iTime and k < len(p):
            mM[iRow,j] = p[k]
            k = k + 1  # next job to be assigned
    iRow = iRow + 1
    iTime = iTime +1
</code>