Python3 代码

def print2D ( nums, row, col):
    for i in range (row):
        for j in range (col):
            print (nums[i][j], end = " ")
        print ("")

row, col = map (int, input().split())

m = [[0] * col for i in range (row)]

for i in range (row):
    l = input().split()
    for j in range (col):
        m [i][j] = int (l[j])

print2D (m, row, col)