真的会悬赏吗?库存管理是做什么的呀

做起来没什么技术含量太浪费时间！

你可以在官网上查到的      希望前景美好

好想要黑马币

这么难的题目，2年了还没人答出来，哈哈哈

我多分啊，可惜我不会MySQL、SQLServer

坐等大神解决，我们也跟着学习一哈

同求大神指导

#include <stdio.h> //通讯录
#include <conio.h>
#include <string.h>
#include <stdlib.h>
#define N 100
int M=5;
struct student
{ char num[10];char name[10];char tel[10];};

void myprint()
{
system("cls");
printf(" |-----------------------------------------------|\n");
printf(" | =_______________=请输入选项编号(0-7): |\n");
printf(" |-----------------------------------------------|\n");
printf(" |--------------1--创建通讯录--------------------|\n");
printf(" |--------------2--显示通讯录--------------------|\n");
printf(" |--------------3--查询通讯录--------------------|\n");
printf(" |--------------4--修改通讯录--------------------|\n");
printf(" |--------------5--添加通讯录--------------------|\n");
printf(" |--------------6--删除通讯录--------------------|\n");
printf(" |--------------7--排序通讯录--------------------|\n");
printf(" |--------------0--退出--------------------------|\n");
printf(" |-----------------------------------------------|\n");
}
void mycreat(struct student *p,int n)
{
struct student *q=p;
FILE *fp=NULL;
fp=fopen("d:\\jilu.dat","w");
if(fp==NULL){printf("error"); return;}
for(p=q;p-q<n;p++)
{
printf("\n");
printf("第%d条记录:\n",p-q+1);
printf("学号:");
do
{gets(p->num);}
while(strcmp(p->num,"")==0);
printf("姓名:");
gets(p->name);
printf("电话:");
gets(p->tel);
fprintf(fp,"%23s%15s%15s\n",p->num,p->name,p->tel);
}
}
void mydisplay(struct student *p,int n)
{
FILE *fp=NULL;
fp=fopen("d:\\jilu.dat","r");
if(fp==NULL)
{printf("error"); return;}
system("cls");
printf(" 学号 姓名 电话\n");
while(n>0)
{
fscanf(fp,"%23s%15s%15s",p->num,p->name,p->tel);
printf("%23s%15s%15s\n",p->num,p->name,p->tel);
p++;n--;
}
}
void mysearch(struct student *p,int n)
{
struct student *q=p;
int flag=0;
char c='\0',nm[10]="",nam[10]="";
printf("\n按照学号查询(h)或姓名查询(m):\n");
c=getche();
if(c=='h'||c=='H')
{
printf("请输入要查询记录的学号:");gets(nm);
for(p=q;p-q<n;p++)
if(strcmp(nm,p->num)==0)
{
printf(" 学号 姓名 电话\n");
printf("%23s%15s%15s\n",p->num,p->name,p->tel);
flag=1;
}
if(flag==0) printf("wrong...\n");
}
else if(c=='m'||c=='M')
{
printf("请输入要查询记录的姓名:");gets(nam);
for(p=q;p-q<n;p++)
if(strcmp(nam,p->name)==0)
{
printf(" 学号 姓名 电话\n");
printf("%23s%15s%15s\n",p->num,p->name,p->tel);
flag=1;
}
if(flag==0) printf("wrong...\n");
}
else printf("wrong...\n");
}
void mymodify(struct student *p,int n)
{
struct student *q=p;
FILE *fp=NULL;
char nam[10]="";
mydisplay(p,n);
printf("请输入您想要修改记录的姓名:\n");gets(nam);
for(p=q;p-q<n;p++)
if(strcmp(nam,p->name)==0) break;
if(p-q==n)
printf("wrong...");
else
{
printf("请输入正确的学号:");
do
gets(p->num);
while(strcmp(p->num,"")==0);
printf("请输入正确的姓名:");
gets(p->name);
printf("请输入正确的电话:");
gets(p->tel);
}
fp=fopen("d:\\jilu.dat","w");
if(fp==NULL){printf("error"); exit(0);}
for(p=q;p-q<n;p++)
fprintf(fp,"%23s%15s%15s\n",p->num,p->name,p->tel);
fclose(fp);
}
void myadd(struct student *p,int n)
{
FILE *fp=NULL;
struct student *q=p;
char c='\n',tempnum[10]="",tempname[10]="",temptel[10]="";
printf("\n");
while(strcmp(p->num,"")!=0)
{
printf("%23s%15s%15s\n",p->num,p->name,p->tel);
p++;

}
n=p-q;
do
{
printf("请输入新纪录的学号:");
do
gets(tempnum);
while(strcmp(tempnum,"")==0);
printf("请输入新纪录的姓名:");
gets(tempname);
printf("请输入新纪录的电话:");
gets(temptel);
for(p=q;p-q<n;p++)
if(strcmp(tempnum,p->num)==0||strcmp(temptel,p->tel)==0)
{
printf("学号或电话号码需要重新输入吗(Y/N)?");
c=getche();
putchar('\n');
break;
}
if(p-q==n)
{
strcpy(p->num,tempnum);
strcpy(p->name,tempname);
strcpy(p->tel,temptel);
break;
}
}while(c=='y'||c=='Y');
fp=fopen("d:\\jilu.dat","w");
if(fp==NULL){printf("error"); return;}
for(p=q;p-q<=n;p++)
fprintf(fp,"%23s%15s%15s\n",p->num,p->name,p->tel);
fclose(fp);
M++;
}
void mydelete(struct student *p,int n)
{
FILE *fp=NULL;
struct student *q=p;
char c[10]="",tempnum[10]="",tempname[10]="",temptel[10]="",choose='\0';
mydisplay(p,n);
printf("选择删除记录的方式:学号(h)姓名(m)");
choose=getche();
printf("\n");
if(choose=='m'||choose=='M')
{
printf("删除的记录:");
gets(c);
for(;p-q<n;p++)
if(strcmp(c,p->name)==0) break;
if(p-q<n)
for(;p-q<n-1;p++)
{
strcpy(p->num,(p+1)->num);
strcpy(p->name,(p+1)->name);
strcpy(p->tel,(p+1)->tel);
}
else printf("no\n");

}
else if(choose=='h'||choose=='H')
{
printf("删除的记录:");
gets(c);
for(;p-q<n;p++)
if(strcmp(c,p->num)==0) break;
if(p-q<n)
for(;p-q<n-1;p++)
{
strcpy(p->num,(p+1)->num);
strcpy(p->name,(p+1)->name);
strcpy(p->tel,(p+1)->tel);
}
else printf("no");
}
else printf("wrong\n");
fp=fopen("d:\\jilu.dat","w");
if(fp==NULL){printf("error"); return;}
for(p=q;p-q<n-1;p++)
fprintf(fp,"%23s%15s%15s\n",p->num,p->name,p->tel);
fclose(fp);
M--;
}

void mysort(struct student *p,int n)
{
FILE *fp=NULL;
struct student *q=p,*w=p,*a=p;
char temp[10]="",c1='\0',c2='\0';
mydisplay(p,n);
printf("选择按照学号(h)或姓名(m)排序:\n");
c1=getche();
if(c1=='h'||c1=='H')
{
printf("升序(s)或者降序(j)排列:");
c2=getche();
if(c2=='s'||c2=='S')
for(;p-a<n;p++)
{
w=p;
for(q=p+1;q-a<n;q++)
if(strcmp(w->num,q->num)>0) w=q;
strcpy(temp,w->num);
strcpy(w->num,p->num);
strcpy(p->num,temp);
strcpy(temp,w->name);
strcpy(w->name,p->name);
strcpy(p->name,temp);
strcpy(temp,w->tel);
strcpy(w->tel,p->tel);
strcpy(p->tel,temp);
}
else if(c2=='j'||c2=='J')
for(;p-a<n;p++)
{
w=p;
for(q=p+1;q-a<n;q++)
if(strcmp(w->num,q->num)<0) w=q;
strcpy(temp,w->num);
strcpy(w->num,p->num);
strcpy(p->num,temp);
strcpy(temp,w->name);
strcpy(w->name,p->name);
strcpy(p->name,temp);
strcpy(temp,w->tel);
strcpy(w->tel,p->tel);
strcpy(p->tel,temp);
}
else printf("555wrong...\n");
}
else if(c1=='m'||c1=='M')
{
printf("升序(s)或者降序(j)排列:");
c2=getche();
if(c2=='s'||c2=='S')
for(;p-a<n;p++)
{
w=p;
for(q=p+1;q-a<n;q++)
if(strcmp(w->name,q->name)>0) w=q;
strcpy(temp,w->num);
strcpy(w->num,p->num);
strcpy(p->num,temp);
strcpy(temp,w->name);
strcpy(w->name,p->name);
strcpy(p->name,temp);
strcpy(temp,w->tel);
strcpy(w->tel,p->tel);
strcpy(p->tel,temp);
}
else if(c2=='j'||c2=='J')
for(;p-a<n;p++)
{
w=p;
for(q=p+1;q-a<n;q++)
if(strcmp(w->name,q->name)<0) w=q;
strcpy(temp,w->num);
strcpy(w->num,p->num);
strcpy(p->num,temp);
strcpy(temp,w->name);
strcpy(w->name,p->name);
strcpy(p->name,temp);
strcpy(temp,w->tel);
strcpy(w->tel,p->tel);
strcpy(p->tel,temp);
}
else printf("555wrong...\n");
}
else printf("555wrong...\n");
fp=fopen("d:\\jilu.dat","w");
if(fp==NULL){printf("error"); return;}
for(p=a;p-a<=n;p++)
fprintf(fp,"%23s%15s%15s\n",p->num,p->name,p->tel);
fclose(fp);

楼主,这个用PB写很快,我这有现成的,你要么?

刚学基础，也想知道

坐等大神

还在学基础，等我出师，帮你解答

还在学基础，等我出师，帮你解答

坐等大神

这个是公司的项目吧？竟然只有250黑马币！一套做得好可以卖4w好吧！

需要一个家庭理财管理系统，求大神！

能兑换的黑马币不少呀

过来瞧瞧