esri 官网国内访问极其缓慢，而且需要注册账号，才能下载，所以我爬虫一次性下载下来；下面的版本都可以下载

http://xiaobaigis.com/resources/ArcGISAPI/arcgis_js_v30_api.zip,
    http://xiaobaigis.com/resources/ArcGISAPI/arcgis_js_v310_api.zip,
    http://xiaobaigis.com/resources/ArcGISAPI/arcgis_js_v311_api.zip,
    http://xiaobaigis.com/resources/ArcGISAPI/arcgis_js_v312_api.zip,
    http://xiaobaigis.com/resources/ArcGISAPI/arcgis_js_v313_api.zip,
    http://xiaobaigis.com/resources/ArcGISAPI/arcgis_js_v314_api.zip,
    http://xiaobaigis.com/resources/ArcGISAPI/arcgis_js_v315_api.zip,
    http://xiaobaigis.com/resources/ArcGISAPI/arcgis_js_v316_api.zip,
    http://xiaobaigis.com/resources/ArcGISAPI/arcgis_js_v317_api.zip,
    http://xiaobaigis.com/resources/ArcGISAPI/arcgis_js_v318_api.zip,
    http://xiaobaigis.com/resources/ArcGISAPI/arcgis_js_v319_api.zip,
    http://xiaobaigis.com/resources/ArcGISAPI/arcgis_js_v31__api.zip,
    http://xiaobaigis.com/resources/ArcGISAPI/arcgis_js_v320_api.zip,
    http://xiaobaigis.com/resources/ArcGISAPI/arcgis_js_v321_api.zip,
    http://xiaobaigis.com/resources/ArcGISAPI/arcgis_js_v322_api.zip,
    http://xiaobaigis.com/resources/ArcGISAPI/arcgis_js_v323_api.zip,
    http://xiaobaigis.com/resources/ArcGISAPI/arcgis_js_v324_api.zip,
    http://xiaobaigis.com/resources/ArcGISAPI/arcgis_js_v325_api.zip,
    http://xiaobaigis.com/resources/ArcGISAPI/arcgis_js_v326_api.zip,
    http://xiaobaigis.com/resources/ArcGISAPI/arcgis_js_v327_api.zip,
    http://xiaobaigis.com/resources/ArcGISAPI/arcgis_js_v328_api.zip,
    http://xiaobaigis.com/resources/ArcGISAPI/arcgis_js_v329_api.zip,
    http://xiaobaigis.com/resources/ArcGISAPI/arcgis_js_v32_api.zip,
    http://xiaobaigis.com/resources/ArcGISAPI/arcgis_js_v330_api.zip,
    http://xiaobaigis.com/resources/ArcGISAPI/arcgis_js_v331_api.zip,
    http://xiaobaigis.com/resources/ArcGISAPI/arcgis_js_v33_api.zip,
    http://xiaobaigis.com/resources/ArcGISAPI/arcgis_js_v34_api.zip,
    http://xiaobaigis.com/resources/ArcGISAPI/arcgis_js_v35_api.zip,
    http://xiaobaigis.com/resources/ArcGISAPI/arcgis_js_v36_api.zip,
    http://xiaobaigis.com/resources/ArcGISAPI/arcgis_js_v37_api.zip,
    http://xiaobaigis.com/resources/ArcGISAPI/arcgis_js_v38_api.zip,
    http://xiaobaigis.com/resources/ArcGISAPI/arcgis_js_v39_api.zip,
    http://xiaobaigis.com/resources/ArcGISAPI/arcgis_js_v40_api.zip,
    http://xiaobaigis.com/resources/ArcGISAPI/arcgis_js_v410_api.zip,
    http://xiaobaigis.com/resources/ArcGISAPI/arcgis_js_v411_api.zip,
    http://xiaobaigis.com/resources/ArcGISAPI/arcgis_js_v412_api.zip,
    http://xiaobaigis.com/resources/ArcGISAPI/arcgis_js_v413_api.zip,
    http://xiaobaigis.com/resources/ArcGISAPI/arcgis_js_v414_api.zip,
    http://xiaobaigis.com/resources/ArcGISAPI/arcgis_js_v41_api.zip,
    http://xiaobaigis.com/resources/ArcGISAPI/arcgis_js_v42_api.zip,
    http://xiaobaigis.com/resources/ArcGISAPI/arcgis_js_v43_api.zip,
    http://xiaobaigis.com/resources/ArcGISAPI/arcgis_js_v44_api.zip,
    http://xiaobaigis.com/resources/ArcGISAPI/arcgis_js_v45_api.zip,
    http://xiaobaigis.com/resources/ArcGISAPI/arcgis_js_v46_api.zip,
    http://xiaobaigis.com/resources/ArcGISAPI/arcgis_js_v47_api.zip,
    http://xiaobaigis.com/resources/ArcGISAPI/arcgis_js_v48_api.zip,
    http://xiaobaigis.com/resources/ArcGISAPI/arcgis_js_v49_api.zip