[单选题]12Whatwillbedisplayedbythefollowingcode?()matrix=[[1,2,3,4],[4,5,6,7],[8,9,10,11],[12,13,14,15]]foriinrange(0,4):print(matrix[i][1],end="")
[单选题]13Whatwillbedisplayedbythefollowingcode?()matrix=[[1,2,3,4],[4,5,6,7],[8,9,10,11],[12,13,14,15]]foriinrange(0,4):print(matrix[1][i],end="")
[单选题]以下程序的输出结果是()intmain(){inta[3][3]={1,2,3,4,5,6,7,8,9};intsum=0,i,j;for(i=0;i<3;i++)for(j=0;j<3;j++)if(i==j)sum=sum+a[i][j];printf(“sum=%d”,sum);}
