c语言 三人五门课求每人平均成绩 每门课平均成绩
#include <stdio.h> main() { float shu[3][5],sum1[3]={0},sum2[5]={0},pjf1[3],pjf2[5]; int a,b; for(a=0;a<3;a++) { for(b=0;b<5;b++) { scanf("%f",&shu[a][b]);//60 60 60 60 60 sum1[a]=sum1[a]+shu[a][b];//sum1[0]=300 sum1[1]=350 sum1[2]=400 sum2[b]=sum2[b]+shu[a][b];//sum2[0]=60 sum2[1]=60 sum2[2]=60 sum2[3]=60 //sum2[0]=130 sum2[1]=130 sum2[2]=130 sum2[3]=130 //sum2[0]=210 sum2[1]=210 sum2[2]=210 sum2[3]=210 } } for(a=0;a<3;a++) { pjf1[a]=sum1[a]/5; printf("学生平均分%f\n",pjf1[a]) ; } for(a=0;a<5;a++) { pjf2[a]=sum2[a]/3; printf("每门课平均成绩%f\n",pjf2[a]); } getchar(); }