js中if.else有关问题求教

js中if..else问题求教

JScript code

function getBoundary(districtName){      var bdary = new BMap.Boundary();    var name = districtName;     if(districtName=="马鞍山市"||"雨山区"||"花山区"||"金家庄区")      bdary.get(districtName, function(rs)       {       //获取行政区域        map.clearOverlays();        //清除地图覆盖物               var count = rs.boundaries.length; //行政区域的点有多少个        for(var i = 0; i < count; i++){            var ply = new BMap.Polygon(rs.boundaries[i], {strokeWeight: 2, strokeColor: "#ff0000"}); //建立多边形覆盖物            map.addOverlay(ply);  //添加覆盖物            map.setViewport(ply.getPath());    //调整视野                 }     });     else         secRing();   }