超市管理系统完整+源代码

有一个小型超市，出售N(N>＝10)种商品，设计并实现一个系统，完成下列2．计算并排序。计算每类商品的总价值(sum，单精度)及平均价(aver，单精度，输出一位小数)，将每类商品按平均价从大到小的顺序排序打印出来。以上(含两种)商品库存量低于100的商品类别。息保存计算模块：将所有商品的价格与库存量进行累加求和；6)打印模块：将商品信息按每类平均价格排序(从高到低)按顺序打印出来；8)统计模块2：统计商品库存量有2种以上(含2种)低于100的商品类别。附录(程序清单)estdiohestdlibhestringheconioh/intn=0;/*定义文件指针类型*/inti,j,a[4],m;/*定义整数类型*/floataver[4],sum[4],g[4],h;/*定义浮点类型*/charc[5]="elec";/*定义字符数组类型*/foodcharf[5]="offi";good{intnum;charkind0];tpricecharunit0];intquantity;structgood*next;*/structgood*createlist()/*创建链表函数*/{structgood*head1,*p1,*p2;/*定义结构体指针类型*/if((fp=fopen("goodsmessage.txt","w"))==NULL)/*判断能否打开文件*/{printfcannotopenthefile");exit/*结束程序*/}head1=(structgood*)malloc(sizeof(structgood));/*申请头结点空间*/phead1;phead1;printf("*********************************************\n");printf入信息:编号，名称，类型，价格，单位，数目\n");printf("(以输入“－1”表示结束输入)\n");printf****************************\n");printf___________\n");anfdssfsdpnumpnamepkindppricepunitpquantity息*/printf___________\n");extNULLfprintffpdssfs%dpnumpnamepkindppricepunitpwhile(1){p=(structgood*)malloc(sizeof(structgood));/*申请新空间*/printf("*********************************************\n");printf入信息:编号，名称，类型，价格，单位，数目\n");printf("(以输入“－1”表示结束输入)\n");printf("*********************************************\n");printf("____________________\n");anfdpnumif(p1->num==-1)/*申请空间结束条件*/{printf("____________________\n\n");fprintf(fp,"%d",-1);osefpreturnhead/*返回头指针*/}scanfssfsdpnamepkind,&p1->price,p1->unit,&p1->quantity);printf("________________\n");fprintf(fp,"%d%s%s%f%s%d",p1->num,p1->name,p1->kind,p1->price,p1->unit,p1->quantity/p1->next=NULL;p2->next=p1;pp}}ctgoodpaixustructgoodhead{for(i=0;i<=3;i++){}p6=(structgood*)malloc(sizeof(structgood));p6->next=head2;headp;while(p6->next!=NULL){p7=p6->next;while(p7->next!=NULL){if((p7->next->price)>(r->next->price))rpp7=p7->next;}if(p6!=r){srnext/*指针调换*/rnext=s->next;extp6->next=s;}p6=p6->next;}phead2;head2=head2->next;freep/*释放第一个无效空间*/turnhead}voidjisuan(){phead;{if(strcmp(p1->kind,c)==0)/*判断是否为电器类型*/{sumsumppricep>quantity);/*求电器总价*/a[0]=a[0]+p1->quantity;/*求电器总件数*/}if(strcmp(p1->kind,d)==0)类型*/{sum[1]=sum[1]+(p1->price)*(p1->quantity);/*求日用品总价*/a[1]=a[1]+p1->quantity;/*求日用品总件数*/}if(strcmp(p1->kind,e)==0)品类型*/{sum[2]=sum[2]+(p1->price)*(p1->quantity);/*求办公用品总价*/a[2]=a[2]+p1->quantity;}if(strcmp(p1->kind,f)==0)/型*/{sum[3]=sum[3]+(p1->price)*(p1->quantity);/*求食品总价*/uantity}p1=p1->next;fori=0;i<4;i++)aver[i]=sum[i]/a[i];*/printf("****************************************************\n");printf商品类型\t平均价\t总库存量\n");printf("****************************************************\n");printf("____________________________________________________\n");printf("电器总价值:%0.1f\t平均价:%0.1f\t总库存量:%d\n",sum[0],aver[0],a[0]);printf("____________________________________________________\n");printfft价:%0.1f\t总库存量:%d\n",sum[1],aver[1],a[1]);printf____________________\n");printf("食品总价值:%0.1f\t平均价:%0.1f\t总库存量:%d\n",sum[2],aver[2],a[2]);printf("____________________________________________________\n");printf("办公用品总价值:%0.1f\t平均价:%0.1f\t总库存量:%d\n",sum[3],aver[3],a[3]);printf_________________________________________________\n");}voidshuchu(){{tructgoodpppintn=0,p=0,q=0,r=0;printf("编号，名称，类型，价格，单位，数目\n");printf("**********************************\n");if((fp=fopen("goodsmessage.txt","rb+"))==NULL)/*判断能否打开文件*/{printf("cannotopenthefile");exit/*结束程序*/}head=(structgood*)malloc(sizeof(structgood));/*申请头结点空间*/phead;fscanf(fp,"%d%s%s%f%s%d",&p3->num,p3->name,p3->kind,&p3->price,p3->unit,&p3->quantity);while(1){p(structgood*)malloc(sizeof(structgood));/*申请头结点空间*/fscanffpdp4->num);if(p4->num!=-1)/*判断循环结束条件*/{fscanf(fp,"%s%s%f%s%dpnamepkindppricepunitpquantity/*从文件中写到链表*/NULLxtppp}{pnextNULL;k}}fclosefp/*关闭文件*/phead;while(p3!=NULL){printf("%d%s%s%0.1f%s%d\n\n",p3->num,p3->name,p3->kind,p3->price,p3->unit,p3->quantity);printf("__________________________________\n");p3=p3->next;}printf("**********************************\n");printf("//////////////////////////////////\n");while(n!=4){phead;printf("**********************************\n");printf添加商品信息\n");printf删除某商品信息\n");printf修改某商品信息\n");printf("4返回(当你完成了对某一商品的添加、删除或者修改后请按4返回)printf("**********************************\n");if(n==1)/*添加商品信息*/{printf"请输入商品编号名称类型价格单位数目\n");printf("**********************************\n");p4=(structgood*)malloc(sizeof(structgood));/*申请空间*/scanf("%d%s%s%f%s%d",&p4->num,p4->name,p4->kind,&p4->price,p4->unit,&pquantity;/*输入商品信息*/p4->next=NULL;while(p3->next!=NULL)/*判断循环结束条件*/{p3=p3->next;}p->next=p4;phead;断能否if((fp=fopen("goodsmessage.txt","w"))==NULL断能否{printf("cannotopenthefile");exit/*结束程序*/}while(p3!=NULL){fprintf(fp,"%d%s%s%f%s%d",p3->num,p3->name,p3->kind,p3->price,p3->unit,p3->quantity)p3=p3->next;}printffpdfclosefp/*关闭文件*/printf("**********************************\n");printf("__________________________________\n");printf("------------请按4返回-------------\n");printf("__________________________________\n");printf("**********************************\n");}if(n==2)/*删除商品*/{printf("**********************************\n");printf"请输入需要删除的商品编号\n");printf("**********************************\n");printf("**********\n");printf确认删除\n2取消删除\n");printf("**********\n");ifr==1){if((head->num)==p){head=head->next;freep/*释放空间*/}{phead;p3=p4->next;while(p3!=NULL){if((p3->num)==p){/*判断循环结束条件*/p5=p3->next;freep/*释放空间*/pnext=p5;k}p3=p3->next;p4=p4->next;}}if((fp=fopen("goodsmessage.txt","w"))==NULL){printf("cannotopenthefile");exit/*结束程序*/}phead;while(p3!=NULL)/*判断循环结束条件*/{fprintffpdssfs%dpnumpnamepkindppricepunitpp3=p3->next;}fprintffpd1);}if(r==2)eprintf("**********************************\n");printf("__________________________________\n");printf("------------请按4返回-------------\n");printf("__________________________________\n");printf("**********************************\n");}if(n==3)/*修改某商品信息*/{printf"请输入需要修改的商品编号\n");while(p3!=NULL){if((p3->num)==q)需要修改的商品*/{printf("请输入商品单价与库存量(如果单价不变请输入原来的单价)\n");scanffdp->price,&p3->quantity);}p3=p3->next;}if((fp=fopen("goodsmessage.txt","w"))==NULL){printf("cannotopenthefile");exit/*结束程序*/能否}phead;while(p3!=NULL{fprintf(fp,"%d%s%s%f%s%d",p3->num,p3->name,p3->kind,p3->price,p3->unit,p3->quantity文件*/p3=p3->next;}fprintffpd1);fclosefp/*关闭文件*/printf("**********************************\n");printf("__________________________________\n");printf("------------请按4返回-------------\n");printf("__________________________________\n");printf("**********************************\n");}if(n==4)/*退出*/k}printf("**********\n");printf修改\n---------\n2返回\n");printf("**********\n");if(p==1)if(p==2)break}voidprintf0(structgood*p)/*遍历链表并打印电器类商品函数*/{structgoodp/*定义结构体指针类型*/ppwhile(p3!=NULL)/*判断遍历链表循环结束条件*/{if(strcmp(p3->kind,c)==0)/*判断商品类型是否为电器类型*/{printf("%d\t%s\t%s\t%0.1f\t%s\t%d\n",p3->num,p3->name,p3->kind,p3->price,p3->unit,p3->quantity);/*输出电器类商品信息*/printf("________________________________________________\n");}p3=p3->next;}}voidprintf1(structgood*p)/*遍历链表并打印日用品类商品函数*/{structgood*p3;/*定义结构体指针类型*/pwhile(p3!=NULL)/*判断遍历链表循环结束条件*/{if(strcmp(p3->kind,d)==0){型*/printf("%d\t%s\t%s\t%0.1f\t%s\t%d\n",p3->num,p3->name,p3->kind,p3->price,p3->unit,p3->quantity);/*输出日用品类商品信息*/printf("________________________________________________\n");}p3=p3->next;}}voidprintf2(structgood*p)/*遍历链表并打印办公用品类商品函数*/{structgoodp3;ppwhile(p3!=NULL){型*/件*/if(strcmp(p3->kind,e)==0)/*判断商品类型是否为办公用品类型*/{printf("%d\t%s\t%s\t%0.1f\t%s\t%d\n",p3->num,p3->name,p3->kind,p3->price,p3->unit,p3->quantity);/*输出办公用品类商品信息*/printf("________________________________________________\n");}p3=p3->next;}}voidprintf3(structgood*p)/*遍历链表并打印食品类商品函数*/{structgood*p3;/*定义结构体指针类型*/ppwhile(p3!=NULL)/*判断遍历链表循环结束条件*/{if(strcmp(p3->kind,f)==0)/*判断商品类型是否为食品类型*/{printfdts\t%s\t%0.1f\t%s\t%d\n",p3->num,p3->name,p3->kind,p3->price,p3-unitpquantity/*输出食品类商品信息*/printf("________________________________________________\n");}p3=p3->next;}}voidshunxudayin{ijii{if(g[j]<g[i])序*/{gj}}printfn**************************\n");printf("商品平均价格排序表(从高到低)\n");printf("****************************\n");printf("________________________________________________\n");printf"编号\t名称\t类别\t单价\t单位\t数量\n");printf("________________________________________________\n");forj=0;j<4;j++)iii{if(aver[i]==g[j])先后顺序*/{printfhead);/*调用遍历链表并打印电器类商品函数*/kprintf(head);/*调用遍历链表并打印日用品类商品函数*/kprintf(head);/*调用遍历链表并打印办公用品类商品函数*/kprintf(head);/*调用遍历链表并打印食品类商品函数*/k}}}voidtongji1(){phead;printf("\n************************\n");printf量低于100的货名及类别\n");printf("************************\n");printf("________________________\n");printf商品名称\t商品类型\n");printf("________________________\n");while(p1!=NULL)/*判断遍历链表循环结束条件*/{if(p1->quantity<100)否小于100*/{printf("%s\t%s\n",p1->name,p1->kind);/*输出商品名称及类别*/printf("________________________\n");}p1=p1->next;}}voidtongji2(){printfn********************************************\n");printf("商品库存量有2种以上(含2种)低于100的商品类别:\n");printf("*************