不理解…搞不出结果 答案是k=4
c = 'A', k++, k = 1,break;k++,k = 2;
c = 'B' < 'G',k --, k = 1,没有break,继续走,k += 2, k = 3, break;k ++, k = 4;
c = 'C' < 'G', k += 2,k = 6, break;k++, k = 7;
c = 'D' < 'G', k = k % 2 == 1,continue;
c = 'E', k = k*10 = 10,break;k++, k = 11;
c = 'F' < 'G', k = k/3 = 3;k++,k = 4;
c = 'G' == 'G',退出循环
输出4