基本信息
源码名称：C++编程实例100篇(源代码)
源码大小：2.71M
文件格式：.zip
开发语言：C/C++
更新时间：2019-04-02
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源码介绍
C 编程源程序100个，由易到难，里面有很多很基础的编程实例，可以作为参考，适合于初学者。
C 编程源程序100个，由易到难，里面有很多很基础的编程实例，可以作为参考，适合于初学者。
//THE PROGRAM IS TO DISPLAY THE OPREATING SYSTEM'S
//PROCESS PAGE DISTRIBUTE.
//FILE PAGE.CPP
#include <stdio.h>
#include <conio.h>
#include <string.h>
#include <stdlib.h>
#include <graphics.h>
#define MAX 100
#define Count 5
int TableLength,Virtual[MAX];
int Length[Count],Privilege[Count];
int Normal[Count],IOTime[Count],Finish[Count];
void Kernel(void);
void Result(void);
void Version(void);
int IF_Finish(void);
void InitGrid(void);
void InitGraph(void);
void InitRecord(void);
void InitProcess(void);
class Node
{
private :
int ID;
int Length;
int Privilege;
int Temp[MAX];
public :
Node()
{
for (int i=0;i<MAX;i ) Temp[i]=-1;
}
void SetID(int I)
{
ID=I;
}
void SetLength(int L)
{
Length=L;
}
void SetPrivilege(int P)
{
Privilege=P;
}
void SetPosition(int Order)
{
Virtual[Order]=ID;
Temp[Order]=ID;
}
void Release(void)
{
for (int i=0;i<TableLength;i )
if (Virtual[i]==ID)
{
Virtual[i]=-1;
Graph.GetRectangle(i)->Fill(0);
}
}
int GetID(void){return ID;}
int GetLength(void){return Length;}
int GetPrivilege(void){return Privilege;}
int GetPosition(void)
{
for (int i=0;i<TableLength;i )
{
if (Temp[i]==ID) break;
}
if (Temp[i]==-1) return MAX;
else
{
Temp[i]=-1;
return i;
}
}
};
class Rectangle
{
friend class Grid;
private :
int left,top,right,bottom;
char content[50];
public :
void Outtextxy(char text[50])
{
strcpy(content,text);
outtextxy(left 9,top 7,content);
}
void Fill(int Number)
{
setfillstyle(SOLID_FILL,Number);
bar3d(left,top,right,bottom,0,0);
getch();
}
void Test(int Temp,int Interval)
{
if (Temp==0) outtextxy(left 45 Interval,top 7,"0");
if (Temp==1) outtextxy(left 45 Interval,top 7,"1");
if (Temp==2) outtextxy(left 45 Interval,top 7,"2");
if (Temp==3) outtextxy(left 45 Interval,top 7,"3");
if (Temp==4) outtextxy(left 45 Interval,top 7,"4");
if (Temp==5) outtextxy(left 45 Interval,top 7,"5");
if (Temp==6) outtextxy(left 45 Interval,top 7,"6");
if (Temp==7) outtextxy(left 45 Interval,top 7,"7");
if (Temp==8) outtextxy(left 45 Interval,top 7,"8");
if (Temp==9) outtextxy(left 45 Interval,top 7,"9");
}
void Display(int number)
{
int Temp=number;
if ((Temp>=0) && (Temp<=9))
{
Test(Temp,0);
}
if ((Temp>=10) && (Temp<=99))
{
Temp=int (Temp/10);
Test(Temp,0);
Temp=number-Temp*10;
Test(Temp,5);
}
}
};
class Grid
{
private :
Rectangle *Array[100];
public :
Grid(){};
void NewRectangle(int number,int a,int b,int c,int d)
{
Rectangle *Newrect;
Newrect=new Rectangle;
Newrect->left=a;
Newrect->top=b;
Newrect->right=c;
Newrect->bottom=d;
rectangle(a,b,c,d);
Array[number]=Newrect;
}
Rectangle *GetRectangle(int number)
{
return Array[number];
}
};
Grid Record,Graph;
Node Table[50];
int main(void)
{
InitProcess();
getch();
InitGraph();
InitRecord();
InitGrid();
Kernel();
Result();
Version();
getch();
closegraph();
return 0;
}
void InitProcess(void)
{
int i;
window(1,1,80,25);
textbackground(1);
textcolor(14);
clrscr();
for (i=0;i<MAX;i ) Virtual[i]=-1;
printf("\n ------ The Process Of Page Distribute ------\n");
printf("\n***** Input The Page Table Length Of The Process : ");
scanf("%d",&TableLength);
for (i=0;i<Count;i )
{
printf("\n----- Input The Length Of The Process %d : ",i 1);
scanf("%d",&Length[i]);
printf("\n***** Input The Prilvilege Of The Process %d : ",i 1);
scanf("%d",&Privilege[i]);
}
}
void InitGraph(void)
{
int Gdriver=DETECT,Gmode,Errorcode;
initgraph(&Gdriver,&Gmode,"d:\\TOOLS\\TC3.0\\BGI");
Errorcode=graphresult();
if (Errorcode!=grOk)
{
printf("Graphics Error: %s\n",grapherrormsg(Errorcode));
printf("Press any key to exit:");
getch();
exit(1);
}
}
void InitRecord(void)
{
int number=0,circle,i;
for (i=0;i<Count 1;i )
{
for (circle=0;circle<Count 1;circle )
{
Record.NewRectangle(number,15 circle*100,20 i*20,
circle*100 115,20 ((i 1)*20));
number=number 1;
}
}
setcolor(14);
Record.GetRectangle(1)->Outtextxy(" Length ");
Record.GetRectangle(2)->Outtextxy("Privilege ");
Record.GetRectangle(3)->Outtextxy(" Normal ");
Record.GetRectangle(4)->Outtextxy(" Colour ");
Record.GetRectangle(5)->Outtextxy("I/O Times");
Record.GetRectangle(6)->Outtextxy(" P1 ");
Record.GetRectangle(12)->Outtextxy(" P2 ");
Record.GetRectangle(18)->Outtextxy(" P3 ");
Record.GetRectangle(24)->Outtextxy(" P4 ");
Record.GetRectangle(30)->Outtextxy(" P5 ");
setcolor(9);
for (i=7,circle=0;i<=31,circle<Count;i=i 6,circle )
Record.GetRectangle(i)->Display(Length[circle]);
for (i=8,circle=0;i<=32,circle<Count;i=i 6,circle )
Record.GetRectangle(i)->Display(Privilege[circle]);
for (i=9,circle=0;i<=33,circle<Count;i=i 6,circle )
Record.GetRectangle(i)->Display(Normal[circle]);
for (i=11,circle=0;i<=35,circle<Count;i=i 6,circle )
Record.GetRectangle(i)->Display(IOTime[circle]);
setcolor(9);
Record.GetRectangle(10)->Outtextxy(" BLUE ");
setcolor(10);
Record.GetRectangle(16)->Outtextxy(" GREEN ");
setcolor(11);
Record.GetRectangle(22)->Outtextxy(" CYAN ");
setcolor(12);
Record.GetRectangle(28)->Outtextxy(" RED ");
setcolor(13);
Record.GetRectangle(34)->Outtextxy(" MAGENTA ");
}
void InitGrid(void)
{
int number=0,circle=0;
setcolor(11);
outtextxy(155,180,"The Process Of Memory Page Distribute");
setlinestyle(CENTER_LINE,1,1);
line(15,200,610,200);
setcolor(15);
setlinestyle(DOTTED_LINE,1,0);
for (circle=0;circle<TableLength;circle )
{
Graph.NewRectangle(number,30 circle*20,250,circle*20 50,270);
number=number 1;
}
}
int IF_Finish(void)
{
if (Finish[0] Finish[1] Finish[2] Finish[3] Finish[4]==5)
return 1;
else return 0;
}
void Kernel(void)
{
int i=0,j=0,Free=0,Current=0,EndIn=0;
int MinPrivilege=0,MinID=Count;
Node TempNode;
Free=TableLength;
Table[0].SetID(0);
Table[0].SetLength(Length[0]);
Table[0].SetPrivilege(Privilege[0]);
for (i=0;i<Table[0].GetLength();i ) Table[0].SetPosition(i);
Current=0;
while (IF_Finish()==0)
{
TempNode=Table[Current];
if ((TempNode.GetLength()<Free) || (TempNode.GetLength()==Free))
{
Finish[TempNode.GetID()]=1;
j=0;
while (j!=MAX)
{
j=TempNode.GetPosition();
if (j!=MAX)
Graph.GetRectangle(j)->Fill(TempNode.GetID() 9);
}
if (TempNode.GetPrivilege()>MinPrivilege)
{
MinPrivilege=TempNode.GetPrivilege();
MinID=TempNode.GetID();
}
Free=Free-TempNode.GetLength();
if (Current==Count-1) EndIn=1;
if (EndIn==0)
{
Table[Current 1].SetID(Current 1);
Table[Current 1].SetLength(Length[Current 1]);
Table[Current 1].SetPrivilege(Privilege[Current 1]);
i=0;
j=0;
while ((j<Length[Current 1]) && (Length[Current 1]<=Free))
{
if (Virtual[i]==-1)
{
Table[Current 1].SetPosition(i);
j=j 1;
}
i=i 1;
}
}
}
else
{
Table[MinID].Release();
Free=Free Table[MinID].GetLength();
i=0;
j=0;
while ((j<Length[Current]) && (Length[Current]<=Free))
{
if (Virtual[i]==-1)
{
Table[Current].SetPosition(i);
j=j 1;
}
i=i 1;
}
MinID=MinID-1;
Current=Current-1;
}
Current=Current 1;
}
}
void Result()
{
getch();
setcolor(14);
outtextxy(200,300,"Default : When there is no page for new process ,");
outtextxy(250,320,"Clear the lowest privilege process in table !");
setcolor(12);
outtextxy(100,340,"***** Result *****");
setcolor(11);
outtextxy(120,360,"----- The Above Is The Page Distribute Graph -----");
getch();
}
void Version()
{
setcolor(14);
outtextxy(150,400," DESIGNED BY NEWTRUMP 2001.01.01 ");
outtextxy(150,420," Version 1.0 ");
}