#include
#include

struct student
{
    int age;
    float score;
    char name[100];   
};

void Input_student_information(struct student *, int);
void student_informatiom_processing(struct student *, int);
void output_student_information(struct student *, int);


int main(void)
{
    int len;
    struct student * pArr;
   
    printf("请输入学生数：");
    scanf("%d", &len);
   
    pArr = (struct student *)malloc(sizeof(struct student)*len);
   
    Input_student_information(pArr, len);
    student_informatiom_processing(pArr, len);
    output_student_information(pArr, len);
   
    return 0;
}

void  Input_student_information(struct student * pArr, int len)
{
    int i;
   
    for (i=0; i

汗！貌似发得不好，请无视该贴，或请删了吧

帖全了再发下呗。。

#include <stdio.h>
#include <malloc.h>

struct student
{
    int age;
    float score;
    char name[100];   
};

void Input_student_information(struct student *, int);
void student_informatiom_processing(struct student *, int);
void output_student_information(struct student *, int);


int main(void)
{
    int len;
    struct student * pArr;
   
    printf("请输入学生数：");
    scanf("%d", &len);
   
    pArr = (struct student *)malloc(sizeof(struct student)*len);
   
    Input_student_information(pArr, len);
    student_informatiom_processing(pArr, len);
    output_student_information(pArr, len);
   
    return 0;
}

void  Input_student_information(struct student * pArr, int len)
{
    int i;
   
    for (i=0; i<len; i++)
    {   
        printf("请输入第%d位学生的信息：\n", i+1);
        
        printf("请输入学生的年龄：");
        scanf("%d", &pArr[i].age);
        
        printf("请输入学生的成绩：");
        scanf("%f", &pArr[i].score);
        
        printf("请输入学生的姓名：");
        scanf("%s", pArr[i].name[100]);//48行
    }        
}

void student_informatiom_processing(struct student * pArr, int len)
{
    int i, j;
    struct student t;
   
    for (i=0; i<len; i++)
    {
        for (j=0; j<len-i-1; j++)
        {
            if(pArr[j].score > pArr[j+1].score)
            {
                t = pArr[j];
                pArr[j] = pArr[j+1];
                pArr[j+1] = t;   
            }
        }   
    }        
}

void output_student_information(struct student * pArr, int len)
{
    int i;
   
    for (i=0; i<len; i++)
    {
        printf("排名第%d位的学生信息为：", i+1);
        printf("年龄为：%d", pArr[i].age);
        printf("成绩为：%f", pArr[i].score);
        printf("姓名为：%s", pArr[i].name[100]);   
        printf("\n");
    }   
}

该代码在48行哪里有个问题，去掉48行就能正常运行，否则就会出错，我实在找不出问题，求解

把行号也补上呗

我有标啊。。 scanf("%s", pArr[i].name[100]);//48行

#include <stdio.h>
#include <malloc.h>

struct student
{
    int age;
    float score;
    char name[100];  
};

void Input_student_information(struct student *, int);
void student_informatiom_processing(struct student *, int);
void output_student_information(struct student *, int);


int main(void)
{
    int len;
    struct student * pArr;
  
    printf("请输入学生数：");
    scanf("%d", &len);
  
    pArr = (struct student *)malloc(sizeof(struct student)*len);
  
    Input_student_information(pArr, len);
    student_informatiom_processing(pArr, len);
    output_student_information(pArr, len);
  
    return 0;
}

void  Input_student_information(struct student * pArr, int len)
{
    int i;
  
    for (i=0; i<len; i++)
    {  
        printf("请输入第%d位学生的信息：\n", i+1);
       
        printf("请输入学生的年龄：");
        scanf("%d", &pArr[i].age);
       
        printf("请输入学生的成绩：");
        scanf("%f", &pArr[i].score);
       
        printf("请输入学生的姓名：");
        scanf("%s", pArr[i].name);//48行
    }       
}

void student_informatiom_processing(struct student * pArr, int len)
{
    int i, j;
    struct student t;
  
    for (i=0; i<len; i++)
    {
        for (j=0; j<len-i-1; j++)
        {
            if(pArr[j].score > pArr[j+1].score)
            {
                t = pArr[j];
                pArr[j] = pArr[j+1];
                pArr[j+1] = t;  
            }
        }  
    }       
}

void output_student_information(struct student * pArr, int len)
{
    int i;
  
    for (i=0; i<len; i++)
    {
        printf("排名第%d位的学生信息为：", i+1);
        printf("年龄为：%d", pArr[i].age);
        printf("成绩为：%f", pArr[i].score);
        printf("姓名为：%s", pArr[i].name);  
        printf("\n");
    }  
}

代码风格不错 但要深刻理解C里面对字符串的处理

scanf("%s", pArr[i].name[100]);//48行
哦，这行啊？[100]是什么意思？你见谁这样写过？

晕死，还是不够细心啊。。谢谢了。呵呵。

祝楼主学习顺利 记得要结题哦 谢谢