说明：c++简单实现 信息添加、显示、删除
// wuliu.cpp : by lip
//
#include "stdafx.h"
#include
#include
#include
#include
#include
#include
struct Product {
char name[20];
int id;
struct Product *next;
};
struct Product *Head;
struct Product *add(struct Product *h);
void show();
void save(struct Product *h);
void del();
void choice();
void main_init();
struct Product *add(struct Product *h){
system("cls");
int n=0;
int i=0;
h = NULL;
struct Product *p;
printf("\n");
printf("请输入总物流记录数：");
scanf("%d",&n);
for (i=0;iname);
printf("编号：");
scanf("%d",&p->id);
printf(" -------------- \n");
p-> next = NULL;
if(h==NULL)
h=p;
else
{
struct Product *q=h;
while(q->next!=NULL)
q=q->next;
q->next=p;
}
}
return(h);
}
void main_init(){
printf("---- ----- ---- ----\n");
printf("* 1.添加 2.显示 3.删除 *\n");
printf("---- ---- ---- ----\n");
struct Product *p;
p=(struct Product *)malloc(sizeof(struct Product));
int choice;
printf("请选择:");
scanf("%d",&choice);
switch(choice){
case 1:
p = add(p);
save(p);
break;
case 2:
show();break;
case 3:
del();break;
default:
exit(1);break;
}
}
void show(){
system("cls");
printf("正在读取,请稍后...\n");
struct Product *p;
p=(struct Product *)malloc(sizeof(struct Product));
struct Product *q;
q=(struct Product *)malloc(sizeof(struct Product));
ifstream read("wuliu.txt",ios::in);
if(!read)
{
cout<<"can not rean wuliu.txt"<>p->name>>p->id;
if(read.fail()){
break;
}
cout<name<<'\t'<id<next=NULL;
read.close();
printf("\n");
printf("读取完毕!\n");
choice();
}
void del(){
system("cls");
struct Product *p;
p=(struct Product *)malloc(sizeof(struct Product));
struct Product *q;
q=(struct Product *)malloc(sizeof(struct Product));//保存用户要删除物流信息
ifstream read("wuliu.txt",ios::in);//读入原文件
if(!read)
{
cout<<"can not read wuliu.txt"<>q->name;
while(read.good()&&!read.eof())
{
read>>p->name>>p->id;
if(read.fail()){//防止读取时最后一行重复
break;
}
if( strcmp(p->name,q->name)!=0 ){
save<name<<'\t'<id<name,q->name)==0 ){
save<name<<'\t'<id<name<<'\t'<id<name<<'\t'<id<next;
}
save.close();
printf("存储完成...\n");
choice();
}
void choice(){
int choice;
cout<<("\n");
cout<<"请选择 1.返回主菜单 2.退出 :"<
