【正文】 lchild。}else if(keyp2data){p1=p2。p2=p1rchild。}}if(p2==NULL){printf(“n[錯誤]該車次不存在!返回上級菜單n...”)。return。}else if(p2lchild==NULLamp。amp。p2rchild==NULL){if(p1lchild==p2)p1lchild=NULL。if(p1rchild==p2)p1rchild=NULL。temp=p2。if(root==p2){temp=root。root=NULL。}}else{if(p2rchild==NULL){temp=p2lchild。p2data=tempdata。p2lchild=templchild。p2rchild=temprchild。}else if(p2lchild==NULL){temp=p2rchild。p2data=tempdata。p2lchild=templchild。p2rchild=temprchild。}else{p3=p2。temp=p2lchild。while(temprchild!=NULL){p3=temp。temp=temprchild。}p2data=tempdata。if(p3==p2)p3lchild=templchild。else p3rchild=templchild。}}free(temp)。printf(“車次 %d 已取消!nn”,key)。}CNODE *insert_c(CNODE *head){CNODE *k,*p。k=(CNODE *)malloc(sizeof(CNODE))。do{printf(“n車票編號:”)。scanf(“%d”,amp。kno)。p=search_c(head,kno)。if(p!=NULL)printf(“n[錯誤]該票已被購買!請重新選擇!n”)。}while(p!=NULL)。printf(“購票者證件號:”)。scanf(“%d”,amp。kid)。printf(“購票日期(格式:yymmdd):”)。scanf(“%d%d%d”,amp。k,amp。k,amp。k)。knext=head。head=k。return(head)。}CNODE *insert_c_more(CNODE *head){int n,i。printf(“n請輸入批量新增售票記錄數(shù):”)。fflush(stdin)。scanf(“%d”,amp。n)。for(i=0。iprintf(“n售票記錄更新成功!n”)。return(head)。}CNODE *search_c(CNODE *head,int id){CNODE *temp,*s。s=temp=head。while(temp!=NULLamp。amp。tempid!=id){s=temp。temp=tempnext。}print_c(temp)。if(temp!=NULL)return(s)。else return NULL。}void search_c_id(CNODE *head,int id){CNODE *s,*head_s。s=head_s=NULL。if(head==NULL)printf(“無該證件號紀錄!n”)。while(head!=NULL){if(headid==id){s=(CNODE *)malloc(sizeof(CNODE))。sno=headno。sid=headid。sdate=headdate。snext=head_s。head_s=s。}head=headnext。}print_c_all(head_s)。printf(“n”)。}void search_c_id_all(TNODE *ptr,int id){if(ptr!=NULL){search_c_id_all(ptrlchild,id)。printf(“n車次:%dn”,ptrdata)。search_c_id(ptrhead,id)。search_c_id_all(ptrrchild,id)。} }void search_date(CNODE *head,TIME t){CNODE *s,*head_s。s=head_s=NULL。while(head!=NULL){if(==head)if(==head)if(==head){s=(CNODE *)malloc(sizeof(CNODE))。sno=headno。sid=headid。sdate=headdate。snext=head_s。head_s=s。}head=headnext。}print_c_all(head_s)。printf(“n”)。}void search_date_all(TNODE *ptr,TIME t){if(ptr!=NULL){search_date_all(ptrlchild,t)。printf(“n車次:%dn”,ptrdata)。search_date(ptrhead,t)。search_date_all(ptrrchild,t)。} }CNODE *del_c(CNODE *head,CNODE *p){CNODE *temp。if(p==NULL)printf(“[錯誤]該票未售出或為廢票!返回上級菜單n...”)。else if(p==head){head=NULL。free(p)。}else{temp=pnext。pnext=tempnext。free(temp)。}return(head)。}第二篇：火車票售票系統(tǒng) 需求分析報告三、需求規(guī)格說明書三、需求規(guī)格說明書1．引言...........................................................................................................................1 .............................................................................................................1 .............................................................................................................2 ....................................................................................................................2 .............................................................................................................2 2．任務(wù)概述....................................................................................................................2 ....................................................................................................................2 .............................................................................................................3 ..........................................................................................................3 3．?dāng)?shù)據(jù)描述....................................................................................................................3 .............................................................................................................3 .............................................................................................................3 ..........................................................................................................4 .............................................................................................................4 .............................................................................................................8 4．功能需求....................................................................................................................8 .............................................................................................................8 .............................................................................................................9 5．性能需求....................................................................................................................9 ..........................................................................................................9 .............................................................................................................9 .................................................................................................................9 6．運行需求....................................................................................................................9 .............................................................................................................9 ...........................................................................................................10 ...........................................................................................................10 ...........................................................................................................10 7．其它需求..................................................................................................................101．引言本需求分析報告的目的是規(guī)范化本軟件的編寫，旨在于提高軟件開發(fā)過程中的能見度，便于對軟件開發(fā)過程中的控制與管理，同時提出了本火車售票系統(tǒng)的軟件開發(fā)過程，便于程三、需求規(guī)格說明書序員與客戶之間的交流、協(xié)作，并作為工作