Question

c语言，我看我这段代码显示出来好多错误，我看起来都没错，而且它显示的错误都看不懂，都哪里有错？

#include<stdio.h>#include<stdlib.h>#define N 10int main(){ int i; struct student{ int num; char name[8]; char sex; int age; double grade;}; struct student stu[N]; struct student stumax,stumin; FILE *fp; fp=fopen("aa.txt","r"); if (fp==NULL) {printf("文本打开出错！"); exit(0); } for(i=0;i<N;i++) fscanf(fp,"%d %s %s %d %1f",&stu[i].num,&stu[i].name,&stu[i].sex,&stu[i].age,&stu[i].grade); stumax.grade=0;stumin.grade=100; for(i=0;i<N;i++) { if (stu[i].grade<=stumin.grade) stu[i]=stumin.grade; if (stu[i].grade>=stumax.grade) stu[i]=stumax.grade; } printf("最大值和最小值分别是\n",stumax,stumin); }

Answer 1

修改过了：
#include<stdio.h>
#include<stdlib.h>
#define N 10
int main()
{ int i;
struct student
{ int num;
char name[8];
char sex;
int age;
double grade;
};
struct student stu[N];
struct student stumax,stumin;
FILE *fp;
fp=fopen("aa.txt","r");
if (fp==NULL)
{ printf("文本打开出错！");
exit(0);
}
for(i=0; i<N; i++)
fscanf(fp,"%d %s %s %d %lf",&stu[i].num,&stu[i].name,&stu[i].sex,&stu[i].age,&stu[i].grade);
stumax.grade=0;
stumin.grade=100;
for(i=0; i<N; i++)
{ if (stu[i].grade<stumin.grade) stumin.grade=stu[i].grade;
if (stu[i].grade>stumax.grade) stumax.grade=stu[i].grade;
}
printf("最大值和最小值分别是%f\t%f\n",stumax.grade,stumin.grade);
}

追问

你给的代码是正确的，但是我把我的代码修改之后，居然出错了，运行结果不正确，两个都是0.00...而且我看了半天，代码跟你的一模一样，这是怎么回事？

Answer 2

#include<stdio.h>
#include<stdlib.h>
#define N 10
int main(){
int i;
struct student{
int num;
char name[8];
char sex;
int age;
double grade;
};

struct student stu[N];
struct student stumax,stumin;
FILE *fp;

fp=fopen("aa.txt","r");
if (fp==NULL){
printf("文本打开出错！");
exit(0);
}

for(i=0;i<N;i++)
fscanf(fp,"%d %s %c %d %lf",&stu[i].num,stu[i].name,&stu[i].sex,&stu[i].age,&stu[i].grade);
stumax.grade=0;
stumin.grade=100;
for(i=0;i<10;i++){
if (stu[i].grade<=stumin.grade)
stumin.grade=stu[i].grade;
if (stu[i].grade>=stumax.grade)
stumax.grade=stu[i].grade;
}

printf("最大值和最小值分别是%lf,%lf\n",stumax.grade,stumin.grade);
}

Answer 3

3 成书过程w4 人物形象? 主要人物