运行结果: 23 345 5 34 6 Sum of row o is 10 Sum of row 1 is 14 Sum of row 2 is 18 101418运行结果： 1 2 3 4 2 3 4 5 3 4 5 6 Sum of row 0 is 10 Sum of row 1 is 14 Sum of row 2 is 18 10 14 18 21