从四方API获取图片(Getting picture from foursquare API)

来自foursquare API的新更新指示要组装可解析的照片网址，采用前缀+大小+后缀，例如

https://irs0.4sqi.net/img/general/300x500/2341723_vt1Kr-SfmRmdge-M7b4KNgX2_PHElyVbYL65pMnxEQw.jpg.

在这里，我得到的响应地点示例但我的链接并置不起作用。我该如何解决这个问题？ https://ss3.4sqi.net/img/categories_v2/shops/conveniencestore_100x100.png

"response":{ "venues":[ { "id":"5274eb0f498efd84c1aa5283", "name":"Starbucks", "contact":{ "phone":"3056532071", "formattedPhone":"(305) 653-2071", "twitter":"starbucks", "facebook":"22092443056", "facebookUsername":"Starbucks", "facebookName":"Starbucks" }, "location":{ "address":"199 NE 167th Street", "crossStreet":"NE 2nd Ave.", "lat":25.928553, "lng":-80.19656, "labeledLatLngs":[ { "label":"display", "lat":25.928553, "lng":-80.19656 } ], "distance":206, "postalCode":"33162", "cc":"US", "city":"Miami", "state":"FL", "country":"United States", "formattedAddress":[ "199 NE 167th Street (NE 2nd Ave.)", "Miami, FL 33162", "United States" ] }, "categories":[ { "id":"4bf58dd8d48988d1e0931735", "name":"Coffee Shop", "pluralName":"Coffee Shops", "shortName":"Coffee Shop", "icon":{ "prefix":"https://ss3.4sqi.net/img/categories_v2/food/coffeeshop_", "suffix":".png" }, "primary":true } ], "verified":true, "stats":{ "checkinsCount":614, "usersCount":196, "tipCount":7 }, "url":"http://www.starbucks.com", "allowMenuUrlEdit":true, "beenHere":{ "lastCheckinExpiredAt":0 }, "specials":{ "count":0, "items":[ ] }, "storeId":"19899", "hereNow":{ "count":0, "summary":"Nobody here", "groups":[ ] }, "referralId":"v-1486970551", "venueChains":[ { "id":"556f676fbd6a75a99038d8ec" } ], "hasPerk":false },

The new update on from the foursquare API indicates to assemble a resolvable photo URL, take prefix + size + suffix, e.g.

https://irs0.4sqi.net/img/general/300x500/2341723_vt1Kr-SfmRmdge-M7b4KNgX2_PHElyVbYL65pMnxEQw.jpg.

Here a sample of the response venue that I m getting but my link concatenation isn't working. How can i fix this issue ? https://ss3.4sqi.net/img/categories_v2/shops/conveniencestore_100x100.png

"response":{ "venues":[ { "id":"5274eb0f498efd84c1aa5283", "name":"Starbucks", "contact":{ "phone":"3056532071", "formattedPhone":"(305) 653-2071", "twitter":"starbucks", "facebook":"22092443056", "facebookUsername":"Starbucks", "facebookName":"Starbucks" }, "location":{ "address":"199 NE 167th Street", "crossStreet":"NE 2nd Ave.", "lat":25.928553, "lng":-80.19656, "labeledLatLngs":[ { "label":"display", "lat":25.928553, "lng":-80.19656 } ], "distance":206, "postalCode":"33162", "cc":"US", "city":"Miami", "state":"FL", "country":"United States", "formattedAddress":[ "199 NE 167th Street (NE 2nd Ave.)", "Miami, FL 33162", "United States" ] }, "categories":[ { "id":"4bf58dd8d48988d1e0931735", "name":"Coffee Shop", "pluralName":"Coffee Shops", "shortName":"Coffee Shop", "icon":{ "prefix":"https://ss3.4sqi.net/img/categories_v2/food/coffeeshop_", "suffix":".png" }, "primary":true } ], "verified":true, "stats":{ "checkinsCount":614, "usersCount":196, "tipCount":7 }, "url":"http://www.starbucks.com", "allowMenuUrlEdit":true, "beenHere":{ "lastCheckinExpiredAt":0 }, "specials":{ "count":0, "items":[ ] }, "storeId":"19899", "hereNow":{ "count":0, "summary":"Nobody here", "groups":[ ] }, "referralId":"v-1486970551", "venueChains":[ { "id":"556f676fbd6a75a99038d8ec" } ], "hasPerk":false },