#include <stdio.h>
 struct SCORE
{
    char math;
    int  gpa1;
    char chinese;
    int  gpa2;
    char english;
    int  gpa3;
    char c;
    int  gpa4;
    char s;
    int  gpa5;
    char jd;
    int  gpa6;
    char physical;
    int  gpa7;
    int  score;
}first;
 main(){
  int i;
  float e;
  printf("This is the first score in your college\n ");
  printf("please fill in carefully!\n");
  for(i=0;i<7;i++){
      if(i=0){
         printf("%s",&first.math);
         scanf("%.1f",&first.gpa1);}
      else if(i==1){
          printf("%s",&first.chinese);
          scanf("%.1f",&first.gpa2);}
      else if(i==2){
          printf("%s",&first.english);
          scanf("%.1f",&first.gpa3);}
      else if(i==3){
          printf("%s",&first.c);
          scanf("%.1f",&first.gpa4);}
      else if(i==4){
          printf("%s",first.s);
          scanf("%.1f",&first.gpa5);}
      else if(i==5){
          printf("%s",&first.jd);
          scanf("%.1f",&first.gpa6);}
      else if(i==6){
          printf("%s",&first.physical);
          scanf("%.1f",&first.gpa7);}
      else if(i==7){
          e=0;
          e=(first.gpa1+first.gpa2+first.gpa3+first.gpa4+first.gpa5+first.gpa6+first.gpa7)/7.0;
          printf("&.1f",e);}
  }

return 0；
}

主要是结构体不太懂···请各位大虾帮帮忙····

修改过后还是有问题····
：#include <stdio.h>
struct SCORE
{
    char math;
    int  gpa1;
    char chinese;
    int  gpa2;
    char english;
    int  gpa3;
    char c;
    int  gpa4;
    char s;
    int  gpa5;
    char jd;
    int  gpa6;
    char physical;
    int  gpa7;
    int  score;
}first;
main(){
  int i;
  float e;
  printf("This is the first score in your college\n ");
  printf("please fill in carefully!\n");
  for(i=0;i<7;i++){
      if(i==0){
         printf("first.math");
         scanf("%.1f",&first.gpa1);}
      else if(i==1){
          printf("first.chinese");
          scanf("%.1f",&first.gpa2);}
      else if(i==2){
          printf("first.english");
          scanf("%.1f",&first.gpa3);}
      else if(i==3){
          printf("first.c");
          scanf("%.1f",&first.gpa4);}
      else if(i==4){
          printf("first.s");
          scanf("%.1f",&first.gpa5);}
      else if(i==5){
          printf("first.jd");
          scanf("%.1f",&first.gpa6);}
      else if(i==6){
          printf("first.physical");
          scanf("%.1f",&first.gpa7);}
      else if(i==7){
          e=0;
          e=(first.gpa1+first.gpa2+first.gpa3+first.gpa4+first.gpa5+first.gpa6)/6.0;
          printf("&.1f",e);}
  }

return 0;
}

没有错误 但运行不下去···

恩  谢谢了！

好的  我会试试的！谢谢！