Question

new ol.supermap.FeatureService（param,callback）这种接口能转为同步么

Answer 1

你好，这个接口是同步的，如果您是想将其转成异步，您可以参考

 var a= new Promise((resolve)=>{
            new ol.supermap.SpatialAnalystService(serviceUrl).bufferAnalysis(parameters, function (serviceResult) {
            resolve(serviceResult);
           
        });        
    })