适用场景：
- 你是前端开发人员，要开发一个小模块，需要用到线上的环境（账号、数据、跨域等），但你又没有权限往线上传文件
- 你是移动测试人员，需要将一组接口的返回结果替换为另一组，最简单的办法就是使用Fiddler修改接口返回结果
实现脚本代码：
import System; import System.Windows.Forms; import Fiddler; import System.IO;// INTRODUCTION // This is the FiddlerScript Rules file, which creates some of the menu commands and // other features of Fiddler. You can edit this file to modify or add new commands. // // The original version of this file is named SampleRules.js and it is in the // \Program Files\Fiddler\ folder. When Fiddler first starts, it creates a copy named // CustomRules.js inside your \Documents\Fiddler2\Scripts folder. If you make a // mistake in editing this file, simply delete the CustomRules.js file and restart // Fiddler. A fresh copy of the default rules will be created from the original // sample rules file.// GLOBALIZATION NOTE: // Be sure to save this file with UTF-8 Encoding if using any non-ASCII characters // in strings, etc.// JScript.NET Reference // http://fiddler2.com/r/?msdnjsnet // // FiddlerScript Reference // http://fiddler2.com/r/?fiddlerscriptcookbook // // FiddlerScript Editor: // http://fiddler2.com/fiddlerscript-editor/*** Fiddler 自定义脚本* * @author frank* @email frank@mondol.info* @created 2016-08-22*/ class Handlers {/******************** 配置开始 ********************//* 客户端IP白名单 */static var sClientIpWhitelist = ["127.0.0.1","192.168.11.29","192.168.11.89"];/* * 请求URL黑名单* 此名单采用模糊匹配，只要请求URL包含此名单中的字符串就满足条件*/static var sUrlBacklist = ["/generate_204"]; /******************** 配置结束 ********************//******************** 回调开始 ********************//*** 开始请求前的回调* * @return {boolean} true: 终止后面的操作 | false: 不终止*/static function OnBeforeRequestCallback(oSession: Session) {//劫持指定路径下的所有请求var hUrl = "www.shouxiner.com/MyHome/";if(oSession.HTTPMethodIs("GET") && oSession.uriContains(hUrl)){var filePath = MapUrlToFilePath(oSession.url, hUrl, "D:\\MyWeb");if(File.Exists(filePath)) {oSession.LoadResponseFromFile(filePath);return true;}}}/*** PEEK响应头的回调* * @return {boolean} true: 终止后面的操作 | false: 不终止*/static function OnPeekAtResponseHeadersCallback(oSession: Session) {}/*** 返回响应头前的回调* * @return {boolean} true: 终止后面的操作 | false: 不终止*/static function OnBeforeResponseCallback(oSession: Session) {}/******************** 回调结束 ********************/ /******************** 列配置开始 ********************/// The following snippet demonstrates a custom-bound column for the Web Sessions list.// See http://fiddler2.com/r/?fiddlercolumns for more infopublic static BindUIColumn("Method", 60)function FillMethodColumn(oS: Session): String {return oS.RequestMethod;}public static BindUIColumn("ClientIP", 120)function FillClientIPColumn(oS: Session): String {return oS.clientIP;}/******************** 列配置结束 ********************/// The following snippet demonstrates how to create a custom tab that shows simple text/*public BindUITab("Flags")static function FlagsReport(arrSess: Session[]):String {var oSB: System.Text.StringBuilder = new System.Text.StringBuilder();for (var i:int = 0; i<arrSess.Length; i++){oSB.AppendLine("SESSION FLAGS");oSB.AppendFormat("{0}: {1}\n", arrSess[i].id, arrSess[i].fullUrl);for(var sFlag in arrSess[i].oFlags){oSB.AppendFormat("\t{0}:\t\t{1}\n", sFlag.Key, sFlag.Value);}}return oSB.ToString();}*/public static RulesOption("Hide 304s")BindPref("fiddlerscript.rules.Hide304s")var m_Hide304s: boolean = false;// Cause Fiddler to override the Accept-Language header with one of the defined valuespublic static RulesOption("Request &Japanese Content")var m_Japanese: boolean = false;// Automatic Authenticationpublic static RulesOption("&Automatically Authenticate")BindPref("fiddlerscript.rules.AutoAuth")var m_AutoAuth: boolean = false;// Cause Fiddler to override the User-Agent header with one of the defined valuesRulesString("&User-Agents", true) BindPref("fiddlerscript.ephemeral.UserAgentString")RulesStringValue(0,"Netscape &3", "Mozilla/3.0 (Win95; I)")RulesStringValue(1,"WinPhone7", "Mozilla/4.0 (compatible: MSIE 7.0; Windows Phone OS 7.0; Trident/3.1; IEMobile/7.0; SAMSUNG; SGH-i917)")RulesStringValue(2,"WinPhone8.1", "Mozilla/5.0 (Mobile; Windows Phone 8.1; Android 4.0; ARM; Trident/7.0; Touch; rv:11.0; IEMobile/11.0; NOKIA; Lumia 520) like iPhone OS 7_0_3 Mac OS X AppleWebKit/537 (KHTML, like Gecko) Mobile Safari/537")RulesStringValue(3,"&Safari5 (Win7)", "Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US) AppleWebKit/533.21.1 (KHTML, like Gecko) Version/5.0.5 Safari/533.21.1")RulesStringValue(4,"Safari7 (Mac)", "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9) AppleWebKit/537.71 (KHTML, like Gecko) Version/7.0 Safari/537.71")RulesStringValue(5,"iPad", "Mozilla/5.0 (iPad; CPU OS 8_1_2 like Mac OS X) AppleWebKit/600.1.4 (KHTML, like Gecko) Version/8.0 Mobile/12B440 Safari/600.1.4")RulesStringValue(6,"iPhone6", "Mozilla/5.0 (iPhone; CPU iPhone OS 6_0 like Mac OS X) AppleWebKit/536.26 (KHTML, like Gecko) Version/6.0 Mobile/10A405 Safari/8536.25")RulesStringValue(7,"IE &6 (XPSP2)", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)")RulesStringValue(8,"IE &7 (Vista)", "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0; SLCC1)")RulesStringValue(9,"IE 8 (Win2k3 x64)", "Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.2; WOW64; Trident/4.0)")RulesStringValue(10,"IE &8 (Win7)", "Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; Trident/4.0)")RulesStringValue(11,"IE 9 (Win7)", "Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0)")RulesStringValue(12,"IE 10 (Win8)", "Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.2; WOW64; Trident/6.0)")RulesStringValue(13,"IE 11 (Surface2)", "Mozilla/5.0 (Windows NT 6.3; ARM; Trident/7.0; Touch; rv:11.0) like Gecko")RulesStringValue(14,"IE 11 (Win8.1)", "Mozilla/5.0 (Windows NT 6.3; WOW64; Trident/7.0; rv:11.0) like Gecko")RulesStringValue(15,"IE 12 (Win10)", "Mozilla/5.0 (Windows NT 6.4) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/36.0.1985.143 Safari/537.36 Edge/12.0")RulesStringValue(16,"&Opera", "Opera/9.80 (Windows NT 6.2; WOW64) Presto/2.12.388 Version/12.17")RulesStringValue(17,"&Firefox 3.6", "Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.2.7) Gecko/20100625 Firefox/3.6.7")RulesStringValue(18,"&Firefox 36", "Mozilla/5.0 (Windows NT 6.3; WOW64; rv:36.0) Gecko/20100101 Firefox/36.0")RulesStringValue(19,"&Firefox Phone", "Mozilla/5.0 (Mobile; rv:18.0) Gecko/18.0 Firefox/18.0")RulesStringValue(20,"&Firefox (Mac)", "Mozilla/5.0 (Macintosh; Intel Mac OS X 10.8; rv:24.0) Gecko/20100101 Firefox/24.0")RulesStringValue(21,"Chrome", "Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.39 Safari/537.36")RulesStringValue(22,"ChromeBook", "Mozilla/5.0 (X11; CrOS x86_64 6680.52.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/41.0.2272.74 Safari/537.36")RulesStringValue(23,"GoogleBot Crawler", "Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)")RulesStringValue(24,"Kindle Fire (Silk)", "Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10_6_3; en-us; Silk/1.0.22.79_10013310) AppleWebKit/533.16 (KHTML, like Gecko) Version/5.0 Safari/533.16 Silk-Accelerated=true")RulesStringValue(25,"&Custom...", "%CUSTOM%")public static var sUA: String = null;// Cause Fiddler to delay HTTP traffic to simulate typical 56k modem conditionspublic static RulesOption("Simulate &Modem Speeds", "Per&formance")var m_SimulateModem: boolean = false;// Removes HTTP-caching related headers and specifies "no-cache" on requests and responsespublic static RulesOption("&Disable Caching", "Per&formance")var m_DisableCaching: boolean = false;public static RulesOption("Cache Always &Fresh", "Per&formance")var m_AlwaysFresh: boolean = false;// Force a manual reload of the script file. Resets all// RulesOption variables to their defaults.public static ToolsAction("Reset Script")function DoManualReload() { FiddlerObject.ReloadScript();}public static ContextAction("Decode Selected Sessions")function DoRemoveEncoding(oSessions: Session[]) {for (var x:int = 0; x < oSessions.Length; x++){oSessions[x].utilDecodeRequest();oSessions[x].utilDecodeResponse();}UI.actUpdateInspector(true,true);}static function OnBoot() {// MessageBox.Show("Fiddler has finished booting");// System.Diagnostics.Process.Start("iexplore.exe");// UI.ActivateRequestInspector("HEADERS");// UI.ActivateResponseInspector("HEADERS"); }static function OnShutdown() {// MessageBox.Show("Fiddler has shutdown"); }static function OnAttach() {// MessageBox.Show("Fiddler is now the system proxy"); }static function OnDetach() {// MessageBox.Show("Fiddler is no longer the system proxy"); }static function OnBeforeRequest(oSession: Session) {if(OnBeforeRequestCallback(oSession))return;/** 关闭缓存 **/if (m_DisableCache && m_EnableCustomRule) {oSession.oRequest.headers.Remove("If-None-Match");oSession.oRequest.headers.Remove("If-Modified-Since");oSession.oRequest["Pragma"] = "no-cache";}/** 隐藏URL黑名单中的请求 **/if(m_HideByUrlBacklist && m_EnableCustomRule){for(var x in sUrlBacklist){if(oSession.uriContains(sUrlBacklist[x])){oSession.Ignore();break;}}} /** 阻止白名单之外的客户端使用代理 **/if(m_DenyWithoutIpWhitelist && m_EnableCustomRule){var bOk = false;for(var x in sClientIpWhitelist){if(oSession.clientIP.EndsWith(sClientIpWhitelist[x])){bOk = true;break;}}if(!bOk){SetResponse(oSession, 200, "请不要蹭网哦~~！<br/>请检查并关闭你的WiFi代理...<br/><br/> By Frank",null);oSession.Ignore();}} /** 隐藏所有来源请求 **/if(m_HideAllRequest){oSession.Ignore(); }// Sample Rule: Color ASPX requests in RED// if (oSession.uriContains(".aspx")) { oSession["ui-color"] = "red"; }// Sample Rule: Flag POSTs to fiddler2.com in italics// if (oSession.HostnameIs("www.fiddler2.com") && oSession.HTTPMethodIs("POST")) { oSession["ui-italic"] = "yup"; }// Sample Rule: Break requests for URLs containing "/sandbox/"// if (oSession.uriContains("/sandbox/")) {// oSession.oFlags["x-breakrequest"] = "yup"; // Existence of the x-breakrequest flag creates a breakpoint; the "yup" value is unimportant.// }if ((null != gs_ReplaceToken) && (oSession.url.indexOf(gs_ReplaceToken)>-1)) { // Case sensitiveoSession.url = oSession.url.Replace(gs_ReplaceToken, gs_ReplaceTokenWith); }if ((null != gs_OverridenHost) && (oSession.host.toLowerCase() == gs_OverridenHost)) {oSession["x-overridehost"] = gs_OverrideHostWith; }if ((null!=bpRequestURI) && oSession.uriContains(bpRequestURI)) {oSession["x-breakrequest"]="uri";}if ((null!=bpMethod) && (oSession.HTTPMethodIs(bpMethod))) {oSession["x-breakrequest"]="method";}if ((null!=uiBoldURI) && oSession.uriContains(uiBoldURI)) {oSession["ui-bold"]="QuickExec";}if (m_SimulateModem) {// Delay sends by 300ms per KB uploaded.oSession["request-trickle-delay"] = "300"; // Delay receives by 150ms per KB downloaded.oSession["response-trickle-delay"] = "150"; }// User-Agent Overridesif (null != sUA) {oSession.oRequest["User-Agent"] = sUA; }if (m_Japanese) {oSession.oRequest["Accept-Language"] = "ja";}if (m_AutoAuth) {// Automatically respond to any authentication challenges using the // current Fiddler user's credentials. You can change (default)// to a domain\\username:password string if preferred.// // WARNING: This setting poses a security risk if remote // connections are permitted!oSession["X-AutoAuth"] = "(default)";}if (m_AlwaysFresh && (oSession.oRequest.headers.Exists("If-Modified-Since") || oSession.oRequest.headers.Exists("If-None-Match"))){oSession.utilCreateResponseAndBypassServer();oSession.responseCode = 304;oSession["ui-backcolor"] = "Lavender";}}// This function is called immediately after a set of request headers has// been read from the client. This is typically too early to do much useful// work, since the body hasn't yet been read, but sometimes it may be useful.// // For instance, see // http://blogs.msdn.com/b/fiddler/archive/2011/11/05/http-expect-continue-delays-transmitting-post-bodies-by-up-to-350-milliseconds.aspx// for one useful thing you can do with this handler.// // Note: oSession.requestBodyBytes is not available within this function!// static function OnPeekAtRequestHeaders(oSession: Session) {// }// // If a given session has response streaming enabled, then the OnBeforeResponse function // is actually called AFTER the response was returned to the client.// // In contrast, this OnPeekAtResponseHeaders function is called before the response headers are // sent to the client (and before the body is read from the server). Hence this is an opportune time // to disable streaming (oSession.bBufferResponse = true) if there is something in the response headers // which suggests that tampering with the response body is necessary.// // Note: oSession.responseBodyBytes is not available within this function!// static function OnPeekAtResponseHeaders(oSession: Session) {if(OnPeekAtResponseHeadersCallback(oSession))return;/** 隐藏指定类型的文件 **/if(m_HideOtherRequest && m_EnableCustomRule && oSession.oResponse != null){var headers = oSession.oResponse.headers;if(headers.ExistsAndContains("Content-Type", "text/css")) oSession.Ignore();else if(headers.ExistsAndContains("Content-Type", "image")) oSession.Ignore();else if(headers.ExistsAndContains("Content-Type", "script")) oSession.Ignore();else if(headers.ExistsAndContains("Content-Type", "x-shockwave-flash")) oSession.Ignore();}//FiddlerApplication.Log.LogFormat("Session {0}: Response header peek shows status is {1}", oSession.id, oSession.responseCode);if (m_DisableCaching) {oSession.oResponse.headers.Remove("Expires");oSession.oResponse["Cache-Control"] = "no-cache";}if ((bpStatus>0) && (oSession.responseCode == bpStatus)) {oSession["x-breakresponse"]="status";oSession.bBufferResponse = true;}if ((null!=bpResponseURI) && oSession.uriContains(bpResponseURI)) {oSession["x-breakresponse"]="uri";oSession.bBufferResponse = true;}}static function OnBeforeResponse(oSession: Session) {if(OnBeforeResponseCallback(oSession))return;if (m_Hide304s && oSession.responseCode == 304) {oSession["ui-hide"] = "true";}}/*// This function executes just before Fiddler returns an error that it has // itself generated (e.g. "DNS Lookup failure") to the client application.// These responses will not run through the OnBeforeResponse function above.static function OnReturningError(oSession: Session) {} */ /*// This function executes after Fiddler finishes processing a Session, regardless// of whether it succeeded or failed. Note that this typically runs AFTER the last// update of the Web Sessions UI listitem, so you must manually refresh the Session's// UI if you intend to change it.static function OnDone(oSession: Session) {} */// The Main() function runs everytime your FiddlerScript compilesstatic function Main() {var today: Date = new Date();FiddlerObject.StatusText = " CustomRules.js was loaded at: " + today;// Uncomment to add a "Server" column containing the response "Server" header, if present// UI.lvSessions.AddBoundColumn("Server", 50, "@response.server");// Uncomment to add a global hotkey (Win+G) that invokes the ExecAction method below...// UI.RegisterCustomHotkey(HotkeyModifiers.Windows, Keys.G, "screenshot"); }// These static variables are used for simple breakpointing & other QuickExec rules BindPref("fiddlerscript.ephemeral.bpRequestURI")public static var bpRequestURI:String = null;BindPref("fiddlerscript.ephemeral.bpResponseURI")public static var bpResponseURI:String = null;BindPref("fiddlerscript.ephemeral.bpMethod")public static var bpMethod: String = null;static var bpStatus:int = -1;static var uiBoldURI: String = null;static var gs_ReplaceToken: String = null;static var gs_ReplaceTokenWith: String = null;static var gs_OverridenHost: String = null;static var gs_OverrideHostWith: String = null;// The OnExecAction function is called by either the QuickExec box in the Fiddler window,// or by the ExecAction.exe command line utility.static function OnExecAction(sParams: String[]): Boolean {FiddlerObject.StatusText = "ExecAction: " + sParams[0];var sAction = sParams[0].toLowerCase();switch (sAction) {case "bold":if (sParams.Length<2) {uiBoldURI=null; FiddlerObject.StatusText="Bolding cleared"; return false;}uiBoldURI = sParams[1]; FiddlerObject.StatusText="Bolding requests for " + uiBoldURI;return true;case "bp":FiddlerObject.alert("bpu = breakpoint request for uri\nbpm = breakpoint request method\nbps=breakpoint response status\nbpafter = breakpoint response for URI");return true;case "bps":if (sParams.Length<2) {bpStatus=-1; FiddlerObject.StatusText="Response Status breakpoint cleared"; return false;}bpStatus = parseInt(sParams[1]); FiddlerObject.StatusText="Response status breakpoint for " + sParams[1];return true;case "bpv":case "bpm":if (sParams.Length<2) {bpMethod=null; FiddlerObject.StatusText="Request Method breakpoint cleared"; return false;}bpMethod = sParams[1].toUpperCase(); FiddlerObject.StatusText="Request Method breakpoint for " + bpMethod;return true;case "bpu":if (sParams.Length<2) {bpRequestURI=null; FiddlerObject.StatusText="RequestURI breakpoint cleared"; return false;}bpRequestURI = sParams[1]; FiddlerObject.StatusText="RequestURI breakpoint for "+sParams[1];return true;case "bpa":case "bpafter":if (sParams.Length<2) {bpResponseURI=null; FiddlerObject.StatusText="ResponseURI breakpoint cleared"; return false;}bpResponseURI = sParams[1]; FiddlerObject.StatusText="ResponseURI breakpoint for "+sParams[1];return true;case "overridehost":if (sParams.Length<3) {gs_OverridenHost=null; FiddlerObject.StatusText="Host Override cleared"; return false;}gs_OverridenHost = sParams[1].toLowerCase();gs_OverrideHostWith = sParams[2];FiddlerObject.StatusText="Connecting to [" + gs_OverrideHostWith + "] for requests to [" + gs_OverridenHost + "]";return true;case "urlreplace":if (sParams.Length<3) {gs_ReplaceToken=null; FiddlerObject.StatusText="URL Replacement cleared"; return false;}gs_ReplaceToken = sParams[1];gs_ReplaceTokenWith = sParams[2].Replace(" ", "%20"); // Simple helperFiddlerObject.StatusText="Replacing [" + gs_ReplaceToken + "] in URIs with [" + gs_ReplaceTokenWith + "]";return true;case "allbut":case "keeponly":if (sParams.Length<2) { FiddlerObject.StatusText="Please specify Content-Type to retain during wipe."; return false;}UI.actSelectSessionsWithResponseHeaderValue("Content-Type", sParams[1]);UI.actRemoveUnselectedSessions();UI.lvSessions.SelectedItems.Clear();FiddlerObject.StatusText="Removed all but Content-Type: " + sParams[1];return true;case "stop":UI.actDetachProxy();return true;case "start":UI.actAttachProxy();return true;case "cls":case "clear":UI.actRemoveAllSessions();return true;case "g":case "go":UI.actResumeAllSessions();return true;case "goto":if (sParams.Length != 2) return false;Utilities.LaunchHyperlink("http://www.google.com/search?hl=en&btnI=I%27m+Feeling+Lucky&q=" + Utilities.UrlEncode(sParams[1]));return true;case "help":Utilities.LaunchHyperlink("http://fiddler2.com/r/?quickexec");return true;case "hide":UI.actMinimizeToTray();return true;case "log":FiddlerApplication.Log.LogString((sParams.Length<2) ? "User couldn't think of anything to say..." : sParams[1]);return true;case "nuke":UI.actClearWinINETCache();UI.actClearWinINETCookies(); return true;case "screenshot":UI.actCaptureScreenshot(false);return true;case "show":UI.actRestoreWindow();return true;case "tail":if (sParams.Length<2) { FiddlerObject.StatusText="Please specify # of sessions to trim the session list to."; return false;}UI.TrimSessionList(int.Parse(sParams[1]));return true;case "quit":UI.actExit();return true;case "dump":UI.actSelectAll();UI.actSaveSessionsToZip(CONFIG.GetPath("Captures") + "dump.saz");UI.actRemoveAllSessions();FiddlerObject.StatusText = "Dumped all sessions to " + CONFIG.GetPath("Captures") + "dump.saz";return true;default:if (sAction.StartsWith("http") || sAction.StartsWith("www.")) {System.Diagnostics.Process.Start(sParams[0]);return true;}else{FiddlerObject.StatusText = "Requested ExecAction: '" + sAction + "' not found. Type HELP to learn more.";return false;}}}static function SetResponse(oSession: Session, statusCode: Int32, body: String, contentType: String) {oSession.utilCreateResponseAndBypassServer();oSession.oResponse.headers.SetStatus(statusCode, "By Fiddler");if(contentType==null)contentType="text/html";contentType=contentType+"; charset=utf-8";oSession.oResponse["Content-Type"] = contentType;oSession.oResponse["Date"] = DateTime.Now.ToUniversalTime().ToString("r");oSession.utilSetResponseBody(body);} public static RulesOption("启用自定义规则", "自定义规则")var m_EnableCustomRule: boolean = true;/** 隐藏不相关请求（如css、image等） **/public static RulesOption("隐藏CSS/image等请求", "自定义规则")var m_HideOtherRequest: boolean = false;public static RulesOption("强制关闭缓存", "自定义规则")var m_DisableCache: boolean = false; public static RulesOption("隐藏URL黑名单的请求", "自定义规则")var m_HideByUrlBacklist: boolean = true;public static RulesOption("仅接受IP白名单的请求", "自定义规则")var m_DenyWithoutIpWhitelist: boolean = false; public static RulesOption("隐藏所有来源请求")var m_HideAllRequest: boolean = false;static function MapUrlToFilePath(url: String, rootUrl: String, rootDir: String) {var idx = url.indexOf(rootUrl);if(idx < 0)throw new Error("参数错误：" + rootUrl);var idxArgs = url.indexOf("?");var relatPath = url.substring(idx + rootUrl.length, idxArgs > 0 ? idxArgs: undefined);relatPath = relatPath.replace("/", "\\");var pSp = relatPath[0] == "\\" ? "" : "\\";return rootDir + pSp + relatPath;} }
说明：
将OnBeforeRequestCallback方法中的hUrl替换为要劫持的URL路径（可以是部分），将D:\\MyWeb替换为本地文件夹路径。
以代码中路径为例：将来访问http://www.shouxiner.com/MyHome/index.html时，就会转向访问D:\MyWeb\index.html文件里的内容
使用方法：
下载FiddlerScript插件并安装，将以上代码粘贴入FiddlerScript保存即可
