update doc api

@@ -244,3 +244,29 @@ public static class Response {
 }
 ```
 
+
+##### 8. 获取之前领取的收货地址
+
+- URL: {{localhost}}/boxfish-online-card/order/textbook/getObtainAddress
+- Method: POST
+- RequestBody:
+
+```json
+{
+    "openId": "oa-sI0UT7aWRT44vi8bIT1i8KYCI",
+    "userId": ""
+}
+```
+
+- ResponseBody
+
+```json
+{
+    "status": "SUCCESS",
+    "orderProvince": "北京市",
+    "orderCity": "北京市",
+    "orderCounty": "朝阳区",
+    "orderAddressDetail": "太阳宫"
+}
+```
+