C++/c#修改hosts文件(转载)

　　c++

　　#include<iostream>

　　#include<fstream>

　　#include <WTypes.h>

　　#include <Winbase.h>

　　using namespace std;

　　int main()

　　ofstream outf;

　　char * lpFileName="C:WindowsSystem32driversetchosts";

　　DWORD dwAttribute = ::GetFileAttributes(lpFileName);

　　if(dwAttribute & FILE_ATTRIBUTE_READONLY)

　　dwAttribute &= ~FILE_ATTRIBUTE_READONLY;

　　SetFileAttributes(lpFileName,dwAttribute);

　　outf.open("C:WindowsSystem32driversetchosts" , ifstream::in);//要覆盖文件，把最后一个参数去掉

　　outf<<"n# Copyright (c) 1993-1999 Microsoft Corp.";

　　outf<<"n#";

　　outf<<"n# This is a sample HOSTS file used by Microsoft TCP/IP for Windows.";

　　outf<<"n#";

　　outf<<"n# This file contains the mappings of IP addresses to host names. Each";

　　outf<<"n# entry should be kept on an individual line. The IP address should";

　　outf<<"n# be placed in the first column followed by the corresponding host name.";

　　outf<<"n# The IP address and the host name should be separated by at least one";

　　outf<<"n# space.";

　　outf<<"n#";

　　outf<<"n# Additionally, comments (such as these) may be inserted on individual";

　　outf<<"n# lines or following the machine name denoted by a '#' symbol.";

　　outf<<"n#";

　　outf<<"n# For example:";

　　outf<<"n#";

　　outf<<"n# 102.54.94.97 rhino.acme.com # source server";

　　outf<<"n# 38.25.63.10 x.acme.com # x client host";

　　outf<<"n127.0.0.1 localhost";

　　outf<<"n";

　　outf.close();

　　return 0;

　　c#

　　//using System.IO;

　　string fpath = @"C:WINDOWSsystem32driversetchosts";

　　File.SetAttributes(@fpath, FileAttributes.Normal);

　　FileStream fs = new FileStream(@fpath, FileMode.Append); //写入的方式可改变，这里是追加

　　StreamWriter sw = new StreamWriter(fs);

　　//写入的一行内容

　　sw.WriteLine("127.0.0.1 ");

　　//写入大量内容前面加 “@”符号

　　sw.WriteLine(@"0.0.0.0

　　0.0.0.0 bbs.bfaft.com

　　0.0.0.0 bfaft.com

　　sw.Close();

　　fs.Close();

　　原文自站长软件

标签： 修改 转载 文件 hosts