结构体数组与指针练习

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本文介绍了一个使用C语言中的结构体与指针来计算学生各科平均成绩的例子。通过定义结构体数组并利用指向结构体的指针进行遍历和计算，展示了如何有效地处理数据。

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结构体数组与指针练习

题目：利用指针指向结构体数组的指针计算学生各科的平均成绩。

struct
pointer
指向结构体的指针变量名 -> 成员名

代码块

代码块语法遵循标准markdown代码，例如：

#include<stdio.h>

struct date
    {
        int year;
        int month;
        int day;
    };

    struct STUDENT
    {
        int studentID;
        char studentName[10];
        char studentSex[4];
        struct date timeOfEnter;
        int scoreComputer;
        int scoreEnglish;
        int scoreMath;
        int scoreMusic;
    };

    struct STUDENT stu[30] = {{1,"xiaoming","M",{1992,12,20},90,83,72,82},
                              {2,"xiaohua","F",{1999,12,20},78,92,88,78},   
                              {3,"zhangsan","M",{1999,12,20},89,72,98,66},
                              {4,"lisi","F",{1999,12,20},78,95,87,90}
                              };


int main(){

    struct STUDENT *pt;
    float sum[4] = {0.0},ave[4] = {0.0}; 
    int i;
    char *name[] ={"score of Computer","score of English","score of Math","score of Music"};

    pt = stu;

    for(pt = stu; pt < stu+30; pt++){
        sum[0] = sum[0] + pt->scoreComputer;
        sum[1] = sum[1] + pt->scoreEnglish;
        sum[2] = sum[2] + pt->scoreMath;
        sum[3] = sum[3] + pt->scoreMusic;
    }

    for(i = 0; i<4; i++)
    {
        ave[i] = sum[i]/4;
        printf("%20s :
 %4.2f\n",name[i],ave[i]);
    }
    return 0;
}