c语言 打开文件 %1,大哥，大姐们，为什么就写不到文件里去呢，求回复。

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FILE*fp=NULL;

fp=fopen("d:\\duli16_3.txt","r");

if(fp==NULL)

{

printf("\n       打开文件失败！\n");exit(0);

}

p=record;

while(feof(fp)==0)

{

fscanf(fp,"%23s%15s\n",p->num,p->name);

p++;

n++;

}

fclose(fp);

printf("\n      请输入要注销记录的姓名:");

getchar();

gets(tempname);

for(k=record;k

if(strcmp(tempname,k->name)==0)break;

if(k

for(p=k;p

*p=*(p+1);

else printf("\n       无此人！\n");

fp=fopen("d:\\duli16_3.txt","w");

if(fp==NULL)

{

printf("\n      打开文件失败!\n");exit(0);}

for(p=record;p

fprintf(fp,"%23s%15s%10d\n",p->num,p->name,p->money);

fclose(fp);

}

void myaddmoney()

{

char c='\0';

int n=0;

int addmoney;

char tempnum[10]="";

struct student*find=NULL, temp={0},record[100]={0},*p=NULL;

FILE*fp=NULL;

fflush(stdin);

fp=fopen("d:\\duli16_3.txt","r");

if(fp==NULL)

{   printf("\n   打开文件失败！\n");return; }

p=record;

while(feof(fp)==0)

{

fscanf(fp,"%10s%10s%10d\n",p->num,p->name,&p->money);

p++;