明解C语言，练习13-3，从文件中读入个人信息，按身高排序后显示

#include

#define NUMBER 6

#define F_PATH "D:\\C_C++\\ec13-3\\hw.dat"

typedef struct {

    char name[20];

    int height;

    float weight;

} student;

void swap(student *x,student *y)

{

    student tmp = *x;

    *x = *y;

    *y = tmp;

}

void sort(student data[],int n)

{

    int k = n - 1;

    while( k >= 0) {

        int i,j;

        for(i = 1,j = -1;i <= k;i++)

            if(data[i-1].height > data[i].height){

                j = i -1;

                swap(&data[i],&data[j]);

            }

        k = j;

    }

}

int main(void)

{

    FILE *fp;

    student str[10];

    if ((fp = fopen(F_PATH,"r")) == NULL)

        printf("\aIt is error!\n");

    else {

        for(int i=0;i < NUMBER;i++)

        {

            fscanf(fp,"%s%d%f",str[i].name,&str[i].height,&str[i].weight);

//            while((fscanf(fp,"%s%d%f",str[i].name,&str[i].height,&str[i].weight))==3);

        }

        sort(str,NUMBER);

        puts("-----------------------------------");

        for(int i=0;i < NUMBER;i++) {

            printf("%-8s %6d %6.1f\n",str[i].name,str[i].height,str[i].weight);

        }

        puts("-----------------------------------");

        fclose(fp);

    }

    return (0);

}