多维数组按某一列进行排序

def takeSecond(elem): return elem[1] def run(random): # key表示按某一列进行排列，reverse = True表示降序排列，默认升序 random.sort(key=takeSecond, reverse = True) return random res = run([[2, 2, 3], [3, 4,1], [4, 1, 5], [1, 3, 4]]) print(res)