void main(){ int a[2][2] = {1,2,3,4}; int avg = 0; int i=0,j=0; for(i=0;i<2;i++) { for(j=0;j<2;j++) { avg+=a[i][j]; } } avg /= 4; printf("键源桥avg = %d\n"稿猛裂码,avg);}