文档介绍：C语言订餐系统
#include <>
#include <>
#include <>
struct consumer
{
char stu_name[30],stu_P档和显示输出；
printf("是否确认删除y/n");
scanf("%s",&choice);
if(choice=='n')
{
exit(0);
}
else
{
printf("请输入您的联系方式和退订原因：");
scanf("%s",&reason);
FILE *fp2;
if((fp2=fopen("d:\\","a+"))==NULL)
{
printf("fail");
exit(0);
}
fprintf(fp2,"%s",reason);
fclose(fp2);
strcat(,".txt");
FILE *fp;
if((fp=fopen(,"r"))==NULL)//打开文档；
{
printf("无该客户");
exit(0);
}
if(remove()==0)//删除文档；
{
printf("已删除成功!");
exit(0);
}
else
{
printf("对不起!删除失败!");
}
fclose(fp);
}
}
void appraise()//评价
{
char stu_name[20];
char evaluate[500];
printf("请输入客户姓名：");
scanf("%s",&);
strcat(,".txt");
FILE *fp=fopen(,"a+");//将文档打开
printf("请输入评价: ");
scanf("%s",&evaluate);
FILE *fp1;
if((fp1=fopen("d:\\","a+"))==NULL)
{
printf("fail");
exit(0);
}
fprintf(fp1,"%s",evaluate);
fclose(fp1);
fprintf(fp,"%s\n",evaluate);
fclose(fp);
printf("评价成功，欢迎下次再来");
}
int main()
{
int choice,x=1;
while(1)
{
printf(" ================ =============== \n\n");
printf("