#?include?
#?include?
#?include?
using?namespace?std;
struct?SCORE???????????????//定義存放學(xué)生成績(jī)信息的結(jié)點(diǎn)
{
????int?num;???????????????//作業(yè)編號(hào)
	string?content;???????????//作業(yè)內(nèi)容
	string?name;????????????//姓名
	int?id;?????????//學(xué)號(hào)
	float?score;????????//就算計(jì)基礎(chǔ)成績(jī)
	float?scoresum;????????//總成績(jī)
	struct?SCORE?*?next;???//next為指向下一結(jié)點(diǎn)的指針
};
struct?SCORE?*?head;???????//指向鏈表頭結(jié)點(diǎn)的指針
int?studentSum=0;??????????//學(xué)生總?cè)藬?shù)
class?record
{
public:
????struct?SCORE?*?InsertRecord（struct?SCORE?*?h）;????????//增加學(xué)生成績(jī)信息
	struct?SCORE?*?DeleteRecord（struct?SCORE?*?h）;????????//刪除學(xué)生成績(jī)信息
	struct?SCORE?*?UpdateRecord（struct?SCORE?*?h）;????????//修改學(xué)生成績(jī)信息
????void?FindRecord（struct?SCORE?*?hint?xfloat?s1float?s2）;????//根據(jù)作業(yè)分?jǐn)?shù)分?jǐn)?shù)段查詢學(xué)生成績(jī)信息
	void?FindRecord（struct?SCORE?*?hstring?x）;???????????//根據(jù)學(xué)生姓名查詢成績(jī)信息
	void?FindRecord（struct?SCORE?*?hint?x）;??????????????//根據(jù)學(xué)生學(xué)號(hào)查詢成績(jī)信息
	void?FindRecord（struct?SCORE?*?hint?ffloat?x）;??????????????//根據(jù)作業(yè)編號(hào)查詢成績(jī)信息
	
	void?PrintRecord（struct?SCORE?*?h）;???????????????????//輸出所有學(xué)生成績(jī)信息
	void?SaveRecordFile（struct?SCORE?*?h）;????????????????//保存學(xué)生成績(jī)信息到文件
	struct?SCORE?*?LoadRecordFile（struct?SCORE?*?h）;??????//從文件中加載學(xué)生成績(jī)信息
};
struct?SCORE?*?record::InsertRecord（struct?SCORE?*?h）
{
????struct?SCORE?*?p1*p2*p3;????????????????//定義指針變量p1、p2、p3
	p3=new?SCORE;?????????????????????????????//創(chuàng)建新的學(xué)生成績(jī)結(jié)點(diǎn)
	cout<<“\n請(qǐng)輸入學(xué)生學(xué)號(hào):“;
	cin>>p3->id;?????????????????????????????//從鍵盤接收輸入數(shù)賦值給結(jié)點(diǎn)的學(xué)號(hào)
	cout<<“\n請(qǐng)輸入學(xué)生姓名:“;
	cin>>p3->name;????????????????????????????//從鍵盤接收輸入數(shù)賦值給結(jié)點(diǎn)的姓名
	cout<<“\n請(qǐng)輸入作業(yè)編號(hào):“;
	cin>>p3->num;????????????????????????????//從鍵盤接收輸入數(shù)賦值給結(jié)點(diǎn)的數(shù)學(xué)成績(jī)
	cout<<“\n請(qǐng)輸入學(xué)生作業(yè)內(nèi)容:“;
	cin>>p3->content;?????????????????????????//從鍵盤接收輸入數(shù)賦值給結(jié)點(diǎn)的英語成績(jī)
	cout<<“\n請(qǐng)輸入學(xué)生的作業(yè)分?jǐn)?shù):“;
	cin>>p3->score;????????????????????????//從鍵盤接收輸入數(shù)賦值給結(jié)點(diǎn)的計(jì)算機(jī)成績(jī)
	
	p3->next=NULL;????????????????????????????//將要插入結(jié)點(diǎn)的指針域設(shè)置為空
	if（h==NULL）???????????????????????????????//當(dāng)鏈表中沒有結(jié)點(diǎn)時(shí)，將要加入的結(jié)點(diǎn)作為頭結(jié)點(diǎn)
	{
????????h=p3;
		return?h;
	}
	p1=p2=h;
	while（p1!=NULL）??????????//查找結(jié)點(diǎn)的學(xué)號(hào)大于要插入結(jié)點(diǎn)學(xué)號(hào)的第一個(gè)結(jié)點(diǎn)
		??????????????????????????????????????//指針p1表示符合條件的結(jié)點(diǎn)的指針，指針p2是指針p1的前一個(gè)結(jié)點(diǎn)指針
	{
		p2=p1;
		p1=p1->next;?
	}
	if（p1==h）?????????????????????????????????//插入位置為頭結(jié)點(diǎn)前
	{
		p3->next=p3;
		h=p3;
		return?h;
	}
	else??????????????????????????????????????//插入位置為鏈表中間和鏈表尾部
	{
		p2->next=p3;
		p3->next=p1;
	}
	studentSum+=1;????????????????????????????//學(xué)生人數(shù)加1
	return?h;????}
void?record::PrintRecord（SCORE?*?h）
{
????if（h==NULL）
	{
		cout<<“\n抱歉，沒有任何記錄！\n“;
		return;
	}
	cout<<“\n學(xué)號(hào)\t姓名\t作業(yè)編號(hào)\t作業(yè)內(nèi)容\t作業(yè)分?jǐn)?shù)“<	while（h）??????????????????????????????????//輸出鏈表中每個(gè)結(jié)點(diǎn)的學(xué)生成績(jī)信息
	{
		cout<id<<“\t“<name<<“\t“<num<<“\t“<content<<“\t“<score<<“\t“<		h=h->next;
	}
}
struct?SCORE?*?record::DeleteRecord（struct?SCORE?*?h）
{
????struct?SCORE?*?p1*?p2;
	int?id;
	if（h==NULL）??????????????????????????????????//鏈表為空
	{
		cout<<“\n抱歉，沒有任何記錄！“;
		return?h;
	}
	p1=p2=h;?????????????????????????????????????//將鏈表

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----
?????文件???????12333??2019-03-05?13:45??作業(yè)管理\ss.cpp
?????目錄???????????0??2019-03-31?16:19??作業(yè)管理\