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#include<> #include<> #include<> #include<>

/* strcmpº¯ÊýÔ­ÐͰüº¬*/ #define N 100

/*¶¨Òå×î´óѧÉúÈËÊýΪ100*/

struct student /*ѧÉú½á¹¹Ì嶨Òå*/ {

char no[11]; /*ѧºÅ,10λ*/ char name[10];/*ÐÕÃû£¬3¸öºº×Ö*/ char grade[10];/*°à¼¶*/ char pro[20];/*רҵ*/

float score[5];/*´¢´æ5ÃŹ¦¿ÎµÄ³É¼¨*/ float ave;/*´¢´æÆ½¾ù·Ö*/ int year;/*ÈëѧÄê*/ }stu[N]; int num;

void panduani(int); /*ͨ¹ýiµÄÖµ£¬ÅжÏÐÅÏ¢Òª²éÕÒµÄÐÅÏ¢ÊÇ·ñ´æÔÚ*/ void output(); /*Êä³öѧÉú³É¼¨º¯Êý£¨¹«¹²º¯Êý£©*/ void init(); /*ϵͳ³õʼ»¯º¯Êý*/ void newfile(); /*½¨Á¢ÐµÄÊý¾ÝÎļþ*/ void read1(); /*´ÓÊý¾ÝÎļþÖжÁÈ¡Êý¾Ý*/ void weihu(); /*ά»¤½çÃæº¯Êý*/ void new1(); /*ÐÂÔöÒ»¸öѧÉú³É¼¨º¯Êý*/ void xiugai(); /*ÐÞ¸ÄѧÉú³É¼¨*/ void xgcj(int); /*Ð޸ijɼ¨*/

void delete1(); /*ɾ³ýѧÉúÐÅÏ¢º¯Êý*/ void tongji(); /*ͳ¼Æ½çÃæº¯Êý*/ void tongji1(); /*¼ÆËãÿ¸öѧÉúƽ¾ù·Ö*/ void tongji2(); /*¼ÆËãÿÃÅ¿Î³ÌµÄÆ½¾ù·Ö*/ void paixu1(); /*ÅÅÐòº¯Êý*/ void paino(); /*°´Ñ§ºÅÅÅÐò*/ void paiave(); /*°´Æ½¾ù·ÖÅÅÐò*/ void paidkcj(); /*°´µ¥¿Æ³É¼¨ÅÅÐò*/

void change(int,int); /*½»»»½á¹¹ÌåÊý×éÖеÄÁ½¸ö¼Ç¼*/ void outputx(int); /*Ñ¡ÔñÊä³öµ¥¿Æ³É¼¨*/ void find1(); /*²éÕÒ½çÃæº¯Êý*/ int find(char sno[]); /*°´Ñ§ºÅ²éÕÒ*/ int findname(char cname[]);/*°´ÐÕÃû²éÕÒ*/ void findyear(int cyear); /*°´ÈëѧÄê²éÕÒ*/ void save(); /*±£´æÎļþ*/ void stop(); /*Í£¶Ùº¯Êý*/

void stop() /*Í£¶Ùº¯Êý £¨¹«¹²º¯Êý£©*/ {

printf(\ getchar(); }

void output() /*Êä³öѧÉú³É¼¨º¯Êý£¨¹«¹²º¯Êý£©*/ { int i,j;

printf(\;

printf(\ѧºÅ ÐÕÃû °à¼¶ רҵ ÈëѧÄê CÓïÑÔ ¸ßÊý ´óÎï µç· Ä£µç\\n\

printf(\;

for(i=0;i

printf(\ro,stu[i].year); for(j=0;j<5;j++)

printf(\ printf(\ } stop(); }

void init() /*ϵͳ³õʼ»¯º¯Êý */ {

if(access(\ÅжÏÎļþÊÇ·ñ´æÔÚ*/

newfile(); /*Èô²»´æÔÚ£¬Ð½¨Êý¾ÝÎļþ*/ else

read1(); /*Èô´æÔÚ£¬¶ÁÈ¡Êý¾Ý*/ }

void newfile() /*½¨Á¢ÐµÄÊý¾ÝÎļþ */

{ int i; FILE *fp;

if((fp=fopen(\´´½¨¶þ½øÖÆÎļþ*/ {

printf(\´´½¨Îļþʧ°Ü£¬ÇëÖØÐÂÔËÐгÌÐò.\\n\ÏÔʾ\´´½¨Îļþʧ°Ü£¬ÇëÖØÐÂÔËÐгÌÐò\

exit(0); /*ÖÕÖ¹³ÌÐò*/ }

printf(\³õ´ÎÔËÐУ¬½øÐÐÊý¾Ý³õʼ»¯...\\n\ÏÔʾ\³õ´ÎÔËÐУ¬½øÐÐÊý¾Ý³õʼ»¯...\ stop();

printf(\ÇëÊäÈëѧÉúÈËÊý£º\ÏÔʾ\ÇëÊäÈëѧÉúÈËÊý£º\ scanf(\ for(i=0;i

printf(\ÇëÊäÈëµÚ %d¸öѧÉúµÄѧºÅ:\ÏÔʾ\ÇëÊäÈëµÚi+1¸öѧÉúµÄѧºÅ:\ getchar(); /*³Ô»Ø³µ*/ gets(stu[i].no);

printf(\ÐÕÃû:\ÏÔʾ\ÐÕÃû:\ gets(stu[i].name);

printf(\°à¼¶:\ÏÔʾ\°à¼¶:\ gets(stu[i].grade);

printf(\רҵ:\ÏÔʾ\רҵ:\ gets(stu[i].pro);

printf(\ÈëѧÄên:\ÏÔʾ\ÈëѧÄê\ scanf(\

printf(\ÓïÑԳɼ¨:\ÏÔʾ\ÓïÑԳɼ¨\ scanf(\

printf(\¸ßÊý³É¼¨:\ÏÔʾ\¸ßÊý³É¼¨\ scanf(\

printf(\´óÎï³É¼¨:\ÏÔʾ\´óÎï³É¼¨\ scanf(\

printf(\µç·³É¼¨:\ÏÔʾ\µç·³É¼¨\ scanf(\

printf(\Ä£µç³É¼¨:\ÏÔʾ\Ä£µç³É¼¨\ scanf(\

fwrite(&stu[i],1,sizeof(struct student),fp); /*°ÑµÚi+1ÃûѧÉú³É¼¨Ð´ÈëÎļþ*/ }

fclose(fp);

printf(\

printf(\¸Õ²ÅÊäÈëµÄ %d ¸öÊý¾ÝΪ£º\\n\ÏÔʾ\¸Õ²ÅÊäÈëµÄ num ¸öÊý¾ÝΪ£º\ printf(\ output(); }

void read1() /*´ÓÊý¾ÝÎļþÖжÁÈ¡Êý¾Ý */ {

FILE *fp;

num=0; /*numΪÊý¾ÝÎļþÖÐʵ¼Ê´æ´¢µÄѧÉúÈËÊý*/ fp=fopen(\

if(fp==NULL) /*Êý¾ÝÎļþ²»´æÔÚ*/ {

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