设有数组定义int[][] x = {{1, 2, 3,4,5, 6, 7}, {3, 4, 5}, {6, 7, 8, 9}, {0, 1, 2, 3, 4, 5, 6}};,则x.length的值为() 定义 数组 设有 发布时间:2024-05-13 22:33:50