改进部分代码，增加Linux可运行的版本，可自己选择想要进入的房间

Signed-off-by: Jerry Yan <792602257@qq.com>

Gift.py

@@ -0,0 +1,48 @@
+import requests
+from User import User
+
+
+class Gift:
+    ID:int = 0
+    count:int = 0
+    roomID:int = 0
+    giftList:dict = {10001: {"Name": "西瓜", "Price": 0}}
+    amount:int = 0
+    user:User = None
+
+    def __init__(self, json=None):
+        if json:
+            self.parse(json)
+
+    def parse(self, json):
+        self.user = User(json)
+        if "Msg" in json:
+            if "present_end_info" in json["Msg"]:
+                self.ID = json["Msg"]['present_end_info']['id']
+                self.count = json["Msg"]['present_end_info']['count']
+            elif "present_info" in json["Msg"]:
+                self.ID = json["Msg"]['present_info']['id']
+                self.count = json["Msg"]['present_info']['repeat_count']
+        if self.ID in self.giftList:
+            self.amount = self.giftList[self.ID]["Price"] * self.count
+
+    @staticmethod
+    def update(roomID):
+        Gift.roomID = roomID
+        p = requests.get("https://live.ixigua.com/api/gifts/{roomID}".format(roomID= roomID))
+        d = p.json()
+        if isinstance(d, int) or "data" not in d:
+            print("错误：礼物更新失败")
+        else:
+            for i in d["data"]:
+                Gift.giftList[i["ID"]] = {"Name": i["Name"], "Price": i["DiamondCount"]}
+
+    def __str__(self):
+        if self.ID in self.giftList:
+            giftN = self.giftList[self.ID]["Name"]
+        else:
+            giftN = "未知礼物[{}]".format(self.ID)
+        return "感谢 {user} 送出的 {count} 个 {name}".format(user= self.user, count= self.count, name= giftN)
+
+    def __unicode__(self):
+        return self.__str__()