增加方法：exportUserCoinRecord（导出用户近7天的U币记录）

src/api/phase2/stat.js

@@ -104,6 +104,15 @@ const dynamicHide = function(id) {
     return ajax.post(baseURL,'/xboe/m/stat/userdynamic/hide?id='+id);
 }
 
+/**
+ * 导出用户近7天的U币记录
+ * @author wn
+ * @param {String} aid 用户aid
+ */
+const exportUserCoinRecord = function(aid) {
+    return ajax.post(baseURL,'/xboe/m/stat/usercoinrecord/export?aid='+aid);
+}
+
 
 export default {
     sendEvent,
@@ -114,5 +123,6 @@ export default {
     userMedalConfig,
     userMedalLevelInfo,
     getUserEValueAndLevel,
-    dynamicHide
+    dynamicHide,
+    exportUserCoinRecord
 }