#include
#include
#include
#include
using?namespace?std;
const?int?n=1000;
int?main（）
{
	int?a[n]ijsum=0;
	char?ch;
	ofstream?ofile;
	ifstream?ifile;
	for（i=0;i		a[i]=1+i;
	a[0]=0;
	for（i=0;i	{
		if（a[i]==0）
			continue;
		for（j=i+1;j			if（a[j]%a[i]==0）
				a[j]=0;
	}
	ofile.open（“myfile2_18.txt“）;
	int?count=0;
	//ofile<<“2--“<	for（i=0;i		if（a[i]!=0）
		{
			sum++;
			ofile<			count++;
			if（count%10==0）
				ofile<		}
		ofile.close（）;
		cout<<“是否要將文件輸出？Y或N“<		cin>>ch;
		if（ch==‘y‘||ch==‘Y‘）
		{
			ifile.open（“myfile2_18.txt“）;
			count=0;
			while（sum--）
			{
				ifile>>i;
				cout<				count++;
				if（count

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2012-06-18?09:20??shiyanshi4\
?????目錄???????????0??2012-06-18?09:20??shiyanshi4\Debug\
?????文件??????569400??2012-06-17?23:44??shiyanshi4\Debug\shiyanshi4.exe
?????文件??????822756??2012-06-17?23:44??shiyanshi4\Debug\shiyanshi4.ilk
?????文件??????350872??2012-06-17?23:44??shiyanshi4\Debug\shiyanshi4.obj
?????文件?????2149096??2012-06-17?22:14??shiyanshi4\Debug\shiyanshi4.pch
?????文件?????1139712??2012-06-17?22:53??shiyanshi4\Debug\shiyanshi4.pdb
?????文件???????91136??2012-06-17?23:44??shiyanshi4\Debug\vc60.idb
?????文件??????135168??2012-06-17?22:53??shiyanshi4\Debug\vc60.pdb
?????文件????????1208??2012-06-17?23:44??shiyanshi4\myfile2_18.txt
?????文件?????????906??2012-06-17?22:53??shiyanshi4\shiyanshi4.cpp
?????文件????????3449??2012-06-17?22:40??shiyanshi4\shiyanshi4.dsp
?????文件?????????543??2012-06-17?23:44??shiyanshi4\shiyanshi4.dsw
?????文件???????50176??2012-06-17?23:44??shiyanshi4\shiyanshi4.ncb
?????文件???????48640??2012-06-17?23:44??shiyanshi4\shiyanshi4.opt
?????文件?????????772??2012-06-17?23:44??shiyanshi4\shiyanshi4.plg