python中的两个二维数组,如何让这两个二维数组在不使用循环的情况下对...答:>>> a =[[1,2,3,6],[2,6,3,9],[3,7,9,0]]>>> b =[[5,7,3,1],[5,7,2,4],[12,34,56,98]]>>> c = [[a[i][j] -b[i][j] for j in range(4)] for i in range(3)]>>> c [[-4, -5, 0, 5], [-3, -1, 1, 5], [-9, -27, -47, -98...
python二维数组中的每一组元素重复的次数怎么统计答:代码如下:coding=utf-8if __name__ == '__main__': a = [ [2,3,34,56], [14,23,45,6], [2,3,34,56] ] map = {} for item in a: s = str(item) if s in map.keys(): map[s] = map[s] + 1 else: map[s] = 1 for...