可以直接初始化啊 a[4][5]={{1,2,3,4,5},{0,0,0,0,0},{0,0,0,0,0},{0,0,0,0,0}};或者用俩for语句还输入。*for (int i=0;i<4;i++) { for (int j=0;j<5;j++) { if (i==0) {a[i][j]=j+1; } else { a[i][j]=0; } } }
int a[4][5]={1,2,3,4,5};