修复订阅地址双斜杠错误 (#533)

* 修复订阅地址双斜杠错误

* 补充注释

Author: kumiko-desu

src/plugins/ELF_RSS2/__init__.py

@@ -14,7 +14,7 @@
 from .rss_class import Rss
 from .utils import send_message_to_admin
 
-VERSION = "2.6.23"
+VERSION = "2.6.24"
 
 __plugin_meta__ = PluginMetadata(
     name="ELF_RSS",

src/plugins/ELF_RSS2/rss_class.py

@@ -49,11 +49,8 @@ def __init__(self, data: Optional[Dict[str, Any]] = None):
     def get_url(self, rsshub: str = str(config.rsshub)) -> str:
         if URL(self.url).scheme in ["http", "https"]:
             return self.url
-        # 先判断地址是否 / 开头
-        if self.url.startswith("/"):
-            return rsshub + self.url
-
-        return f"{rsshub}/{self.url}"
+        # 去除 rsshub地址末尾的斜杠 和 订阅地址开头的斜杠
+        return f"{rsshub.rstrip("/")}/{self.url.lstrip("/")}"
 
     # 读取记录
     @staticmethod