选项B中:int b[][3]={0,1,2,3}时间:2023-03-09 09:20:48 选项B中:int b[][3]={0,1,2,3};等价于 int b[][3]={0,1,2,3,0,0}; int b[][3]={0,1,2,3,4}; cout<<b[1][1]; 结果4.