如何根据百度地图计算出两地之间的驾驶距离（两种语言js和C#）

以下是使用js代码实现百度地图计算两地距离，代码如下所示：

<script src="js/jquery-1.9.0.js" type="text/javascript" language="javascript"></script><script language="javascript" type="text/javascript" src="js/area.js"></script><script type="text/javascript" src="http://api.map.baidu.com/api?v=1.2" language="javascript"></script></head><body><div><table border="0" align="center" cellpadding="0" cellspacing="0" class="w1000"> <tr> <td><td valign="top"><table width="1000px" border="0" cellspacing="0" cellpadding="0"> <tr><td><table width="1000px" border="0" cellspacing="0" cellpadding="0"><tr><td width="19"><span style="padding-top: 2px;"></span></td><td width="60" style="font-size: 12px;">出发城市</td><td><select id="AreaDept1_Province" style="width: 65px" onChange="changearea（this.value,document.getElementById（"AreaDept1_Prefecture"））;"name="Area"><option value="">-省份-</option></select><select id="AreaDept1_Prefecture" style="width: 65px" name="City" onchange="changecity（document.getElementById（"AreaDept1_Province"）.value,document.getElementById（"AreaDept1_Prefecture"）.value,document.getElementById（"AreaDept1_Xian"））"><option value="">-城市-</option></select> <select id="AreaDept1_Xian" style="width: 65px" name="City"><option value="">-县-</option></select><script language="JavaScript" type="text/javascript">setup（document.getElementById（"AreaDept1_Province"））;//$（"#AreaDept1_Province"）.find（"option[text=""+DProvice+""]"）.attr（"selected",true）;//changearea（DProvice,document.getElementById（"AreaDept1_Prefecture"））;//$（"#AreaDept1_Prefecture"）.find（"option[text=""+DCity+""]"）.attr（"selected",true）;</script> </td><td width="26" align="center" style="font-size: 12px;">到</td><td><select name="mdd" id="mdd" style="width: 65px" onChange="changearea（this.value,document.getElementById（"cdd"））;"><option value="" selected="selected">-省份-</option></select><select name="cdd" id="cdd" style="width: 65px" onchange="changecity（document.getElementById（"mdd"）.value,document.getElementById（"cdd"）.value,document.getElementById（"xian"））"><option value="" selected="selected">-城市-</option></select><select name="xian" id="xian" style="width: 65px"><option value="" selected="selected">-县-</option></select><script language="JavaScript" type="text/javascript">setup（document.getElementById（"mdd"））;</script> </td><td><div onclick="SetMap（）; return false;" style="cursor: pointer; width:81px;"><img src="images/search.gif" alt="中国公路里程查询" width="81" height="26" style="vertical-align: middle;" /></div></td><td><table width="380" border="0" cellspacing="0" cellpadding="0"> <tr><td width="50"> </td><td width="19"><span style="padding-top: 2px;"></span></td><td width="90" style="font-size: 12px;"> 出发城市 </td><td><input name="farea" type="text" id="farea" size="10" /></td><td width="26" align="center" style="font-size: 12px;"> 到 </td><td width="110"><input name="tarea" type="text" id="tarea" size="10" /></td><td><div onclick="SetMap2（）; return false;" style="cursor: pointer; width:81px;"> <img src="images/search.gif" alt="中国公路里程查询" width="81" height="26" style="vertical-align: middle;" /></div></td> </tr></table></td></tr></table> </div></td> </tr> <tr><td><div style="border: #cccccc 1px solid; padding:5px;"></div></td> </tr><tr><td> </td> </tr> <tr><td valign="top"><div style="float: left; width: 670px; vertical-align: top;"><div style="height: 500px; border: 1px solid gray" id="container"></div></div><div style="float: right; width: 300px; vertical-align: top;"><div style="border: #cccccc 1px solid;"><div class="content_title" style="color:Red; background-image:url（）;border-bottom:solid 1px #ccc; height:30px; text-align:center; font-weight:bold; line-height:30px;" id="div_title">查询结果</div><div id="div_gongli" style="color:#336600; font-weight:bold; padding-left:5px; line-height:35px; font-size:14px;"></div><div id="results" style="font-size: 12px;"></div></div></div></td> </tr></table></td> </tr></table></div></body></html><script language="javascript" type="text/javascript">var map = new BMap.Map（"container"）;//var mapStyle = { style: "mapbox" }//map.setMapStyle（mapStyle）;map.centerAndZoom（new BMap.Point（116.404, 39.915）, 14）;//map.centerAndZoom（point, 11）;map.addControl（new BMap.NavigationControl（））; // 添加平移缩放控件map.addControl（new BMap.OverviewMapControl（））; //添加缩略地图控件map.enableScrollWheelZoom（）; //启用滚轮放大缩小map.setMapStyle（{ style: "mapbox" }）;function SetMap（） {var oGl = document.getElementById（"div_gongli"）;var ofprovince = document.getElementById（"AreaDept1_Province"）var ofname = document.getElementById（"AreaDept1_Prefecture"）var ofxian = document.getElementById（"AreaDept1_Xian"）var otprovince = document.getElementById（"mdd"）var otname = document.getElementById（"cdd"）;var otxian = document.getElementById（"xian"）var output = "全程：";if （ofname.value == ""） {alert（"请输入出发地！"）;return;}if （otname.value == ""） {alert（"请输入到达地！"）;return;}var title = document.getElementById（"div_title"）;title.innerText = """ + ofprovince.value + ofname.value + ofxian.value + "到" + otprovince.value + otname.value + otxian.value + "" 查询结果";var searchComplete = function（results） {if （transit.getStatus（） ！= BMAP_STATUS_SUCCESS） { return; }var plan = results.getPlan（0）;output += plan.getDistance（true）; //获取距离output += "/";output += plan.getDuration（true）;//获取时间}var transit = new BMap.DrivingRoute（map, { renderOptions: { map: map, panel: "results", autoViewport: true },onSearchComplete: searchComplete,onPolylinesSet: function（） { oGl.innerText = output; }}）;transit.search（ofprovince.value + ofname.value + ofxian.value, otprovince.value + otname.value + otxian.value）;}function SetMap2（） {var oGl = document.getElementById（"div_gongli"）;var ofname = document.getElementById（"farea"）;var otname = document.getElementById（"tarea"）;var output = "全程：";if （ofname.value == ""） {alert（"请输入出发地！"）;return;}if （otname.value == ""） {alert（"请输入到达地！"）;return;}var title = document.getElementById（"div_title"）;title.innerText = """ + ofname.value + "到" + otname.value + "" 查询结果";var searchComplete = function（results） {if （transit.getStatus（） ！= BMAP_STATUS_SUCCESS） { return; }var plan = results.getPlan（0）;output += plan.getDistance（true）; //获取距离output += "/";output += plan.getDuration（true）;//获取时间}var transit = new BMap.DrivingRoute（map, { renderOptions: { map: map, panel: "results", autoViewport: true },onSearchComplete: searchComplete,onPolylinesSet: function（） { oGl.innerText = output; }}）;transit.search（ofname.value, otname.value）;}</script>

下面给大家介绍C#如何根据百度地图，计算出两地之间的驾驶距离

<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><style type="text/css">body, html,#allmap {width: 100%;height: 100%;overflow: hidden;margin:0;}#l-map{height:100%;width:78%;float:left;border-right:2px solid #bcbcbc;}#r-result{height:100%;width:20%;float:left;}</style><script type="text/javascript" src="http://api.map.baidu.com/api?v=1.4"></script><title>计算驾车时间与距离</title></head><body><div id="allmap"></div></body></html><script type="text/javascript">var map = new BMap.Map（"allmap"）;map.centerAndZoom（new BMap.Point（116.404, 39.915）, 12）;var output = "从上地到西单驾车需要";var searchComplete = function （results）{if （transit.getStatus（） ！= BMAP_STATUS_SUCCESS）{return ;}var plan = results.getPlan（0）;output += plan.getDuration（true） + "
";//获取时间output += "总路程为：" ;output += plan.getDistance（true） + "
"; //获取距离}var transit = new BMap.DrivingRoute（map, {renderOptions: {map: map},onSearchComplete: searchComplete,onPolylinesSet: function（）{setTimeout（function（）{alert（output）},"1000"）;}}）;transit.search（"上地", "西单"）;</script>