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#include #define NULL 0#include struct student /* 构造、定义、初始化student结构体类型数组stdu */long num; /* 学生学号 */char name30; /* 学生姓名 */float Chinese ;float Math ;float English ;float score;stud50;void entering(struct student stud,int n); /* 学生信息录入 */int m;printf(输入学生个数nn);scanf(%d,&n);if(n=50)printf(依次输入学号、姓名、语文、数学、英语成绩n ); for(m=0;mn;m+)scanf(%ld,&studm.num);scanf(%c,&); scanf(%f,&studm.Chinese);scanf(%f,&studm.Math);scanf(%f,&studm.English);elseprintf(please input a new integern);void output(struct student stud,int n); /*学生信息浏览*/int i,j;printf(*TABLE*n);printf(-n);printf(学号姓名语文数学英语总分);printf(-n);for(i=0;in;i+)printf(%8ld%8ld,studi.num,);for(j=0;j4;j+)printf(%7.2f,studi.scorej);printf(n);printf(-n);void search (struct student stud,int m); /* 按学号查询 */int i,l;scanf(%ld,&l);for(i=0;in;i+)if(l=studi.num)printf(找到学生信息如下);printf(studi.num);printf(%c,);scanf(%f,&studm.Chinese);scanf(%f,&studm.Math);scanf(%f,&studm.English);elseprintf(enter your student number);void search1 (struct student stud,int n); /* 按最高分查询 */struct student temp3;int i,j;for(i=0;in;i+)for(j=i+1;jstudi.Chinese)temp3=studj.Chinese; studj.Chinese=studi.Chinese; studi.Chinese=temp3; printf(%ld,&studm.num);printf(%c,&); printf(%f,&studm.Chinese);printf(%f,&studm.Math);printf(%f,&studm.English);if(studj.Mathstudi.Math)temp3=studj.Math; studj.Math=studi.Math; studi.Math=temp3; printf(%ld,&studm.num);printf(%c,&); printf(%f,&studm.Chinese);printf(%f,&studm.Math);printf(%f,&studm.English); if(studj.Englishstudi.English)temp3=studj.Enflish; studj.English=studi.English; studi.English=temp3; printf(%ld,&studm.num);printf(%c,&); printf(%f,&studm.Chinese);printf(%f,&studm.Math);printf(%f,&studm.English);void sort(struct student stud,int n) ; /* 按总分排序 */ int i,j;for(i=0;in;i+) /* n是学生个数 */ studi.score=studi.Chinese+studi.Math+studi.English;struct student temp;for(i=0;in;i+)for(j=i+1;jstudj.score)temp=studj;studj=studi;studi=temp;void sort1 (struct student stud,int n) ; /* 按姓名排序 */int i,j;struct student temp1;for(i=0;in;i+)for(j=i+1;)temp1=studj;studj=studi;studi=temp1;int del(struct student stud,int n); /* 信息删除 */long num1; /* 存放将要删除学生学号 */int i,j;printf(please enter a number that you want to delete);scanf(%ld,&num1);for(i=0;in;i+)if(num1=studi.num)for(j=i+1;jn;j+)studj-1.num=studj.num;strcmp(,);studj-1.Chinese=studj.Chinese;studj-1.Math=studj.Math;studj-1.English=studj.English;studj-1.score=studj.score;int rewrite(struct student stud,int n); /* 信息修改 */long num2; /* 存放将要修改信息学生学号 */int i,j;printf(please enter a number that you want to rewrite);scanf(%ld,&num2);if(num2=studi.num)for(j=i+1;jn;j+)scanf(%ld,&studj-1.num);scanf(%c,&);scanf(%f,&studj-1.Chinese);scanf(%f,&studj-1.Math);scanf(%f,&studj-1.English);scanf(%f,&studj-1.score);void main() void entering(); /*学生信息录入*/void output(); /*学生信息浏览*/ /*信息查询*/void search (); /* 按学号查询