#include main() { int a[4][4]={{1,4,3,2}, {8,6,5,7}, {3,7,2,5}, {4,8,6,1}}; int i,j,k,t; for(i=0;i<4;i++) for(j=0;j<3;j++) for(k=j+1;k<4;k++) if(a[j][i]>a[k][i]) { t=a[j][i];a[j][i] = a[k][i];a[k][i] = t; } /* 按列排序 */ for(i=0;i<4;i++) printf("%d,",a[i][i]); } 程序运行后的输出结果是
A. 1, 6, 2, 1,
B. 8, 7, 3, 1,
C. 4, 7, 5, 2,
D. 1, 6, 5, 7,