地理处理服务重分类参数的写法

曾经觉得这个参数好难写，因为是一个映射关系，哪知道不存在的。就是一个字符串，怎么分类写在字符串里面，就完事了。关键代码如下：

<script>
      require([         
      "dijit/layout/BorderContainer",
      "dijit/layout/ContentPane",
      "dijit/layout/AccordionContainer",
      "esri/Map",
      "esri/views/MapView",
      "esri/widgets/Search",
      "esri/views/ui/DefaultUI",
      "esri/layers/MapImageLayer",
      "esri/layers/FeatureLayer",
      "esri/tasks/Geoprocessor",
      "esri/widgets/BasemapToggle",
      "esri/widgets/BasemapGallery"      
    ], function(BorderContainer,ContentPane,AccordionContainer,Map,MapView,Search,DefaultUI,MapImageLayer,FeatureLayer,Geoprocessor,BasemapToggle, BasemapGallery) {

      var map = new Map({
        basemap: "topo-vector"
      });
      
      var view = new MapView({
        container: "mapview",
        map: map,
        center: [106.51,26.41],
        zoom: 12
      });
      //beijing:116.387, 39.909
      //贵安：[106.51,26.41]
      //sample:-118.80543,34.02700
      ////////////////////////////////////////////////////////////////////////
      //先添加MapImageLayer 做地理处理服务的实验
      var imagelayer = new MapImageLayer({url: "http://localhost:6080/arcgis/rest/services/GAND208/MapServer"});
          map.add(imagelayer);
          //以下是地理处理代码段
          // initialize geoprocessor task 初始化地理处理任务
        var gpUrlOrigin ="https://sampleserver6.arcgisonline.com/arcgis/rest/services/911CallsHotspot/GPServer/911%20Calls%20Hotspot";
        //var gpUrl="http://localhost:6080/arcgis/rest/services/LandUseAccess/GPServer";
        //="http://localhost:6080/arcgis/rest/services/LandAccess1016Use/GPServer";
       //     var gpUrl="http://localhost:6080/arcgis/rest/services/LandAccess1016Use/GPServer/LandAccess1016UseName"
            var gpUrl="http://localhost:6080/arcgis/rest/services/UseReclass/GPServer/UseReclass"
        var gp = new Geoprocessor({
         url: gpUrl,
          outSpatialReference: {
            wkid: 3857
          }
        });
        //gp.submitJob().then();
         var params = {
            ReclassMap:"1029.212890625 1221.2645325903673 1;1221.2645325903673 1293.8694216260549 2;1293.8694216260549 1333.6850059359481 3;1333.6850059359481 1626.4466552734 4"
          };//Key Code Key Code Key Code important things say three times!
        gp.submitJob(params);
       //以上代码是用参数调用重分类服务。怎么分都写在那个上面的大字符串里。
        //以下是提交job提交等的代码
    //    geoprocessor.submitJob(params).then(function(jobInfo) { 
        //var jobid = jobInfo.jobId;
    //    var options = {interval: 1500,
    //    statusCallback: function(j) {console.log("Job Status: ", j.jobStatus);}
    //    };
    //   geoprocessor.waitForJobCompletion(jobid, options).then(function() {
    //    var resultlayer = geoprocessor.getResultMapImageLayer(jobid);
     //    map.add(resultlayer);
 // }); 
          //以上是地理处理代码段
      
      
      
      
      //***添加搜索微件和底图切换微件***//
      var searchWidget = new Search({ view: view });
      var bmToggleWidget = new BasemapToggle({
          view: view,
          nextBasemap: "hybrid"
      });

      view.ui.add(searchWidget, "bottom-left");
      view.ui.add(bmToggleWidget, "bottom-right");
      
      
      //*** Add div element to show coordates:在视图区的右下角显示坐标 ***//
      var coordsWidget = document.createElement("div");
      coordsWidget.id = "coordsWidget";
      coordsWidget.className = "esri-widget esri-component";
      coordsWidget.style.padding = "7px 15px 5px";
      view.ui.add(coordsWidget, "bottom-right");
      view.ui._removeComponents(["attribution"]);// 去掉power by esri 

      //*** Update lat, lon, zoom and scale ***//
      function showCoordinates(pt) {
        var coords = "Lat/Lon " + pt.latitude.toFixed(3) + " " + pt.longitude.toFixed(3) + 
            " | Scale 1:" + Math.round(view.scale * 1) / 1 +
            " | Zoom " + view.zoom;
        coordsWidget.innerHTML = coords;
      }
      
      //*** Add event and show center coordinates after the view is finished moving e.g. zoom, pan ***//
      view.watch(["stationary"], function() {
        showCoordinates(view.center);
      });

      //*** Add event to show mouse coordinates on click and move ***//
      view.on(["pointer-down","pointer-move"], function(evt) {
        showCoordinates(view.toMap({ x: evt.x, y: evt.y }));
      });
      
      ///////////////////////////////////////////////////////////////////////
       });
      ////////////////////////////////////////////////////////////////////////
      //
      
      
      
      
      ////////////////////////////////////////////////////////////////////////
    </script>