自动跳过已下载的文件

source/Download.py

@@ -3,20 +3,21 @@ from pathlib import Path
 from requests import exceptions
 from requests import get
 
+from .Manager import Manager
+
 __all__ = ['Download']
 
 
 class Download:
+    manager = Manager()
 
     def __init__(
             self,
-            manager,
-            path,
-            folder,
+            path: str,
+            folder: str,
             headers: dict,
             proxies=None,
             chunk=256 * 1024, ):
-        self.manager = manager
         self.root = self.init_root(path, folder)
         self.headers = headers
         self.proxies = {
@@ -41,11 +42,16 @@ class Download:
             self.download(urls[0], f"{name}.mp4")
 
     def download(self, url: str, name: str):
+        file = self.root.joinpath(name)
+        if self.manager.is_exists(file):
+            print(f"{file} 已存在，跳过下载！")
+            return
         try:
             with get(url, headers=self.headers, proxies=self.proxies, stream=True) as response:
-                with self.root.joinpath(name).open("wb") as f:
+                with file.open("wb") as f:
                     for chunk in response.iter_content(chunk_size=self.chunk):
                         f.write(chunk)
             print(f"{name} 下载成功！")
         except exceptions.ChunkedEncodingError:
+            self.manager.delete(file)
             print(f"网络异常，{name} 下载失败！")

source/Manage.py

@@ -1,6 +0,0 @@
-__all__ = ['Manager']
-
-
-class Manager:
-    def __init__(self):
-        pass

source/Manager.py

@@ -0,0 +1,13 @@
+from pathlib import Path
+
+__all__ = ['Manager']
+
+
+class Manager:
+    @staticmethod
+    def is_exists(path: Path) -> bool:
+        return path.exists()
+
+    @staticmethod
+    def delete(path: Path):
+        path.unlink()

source/__init__.py

@@ -4,7 +4,6 @@ from .Download import Download
 from .Explore import Explore
 from .Html import Html
 from .Image import Image
-from .Manage import Manager
 from .Settings import Settings
 from .Video import Video
 
@@ -26,12 +25,10 @@ class XHS:
             chunk=256 * 1024,
     ):
         self.html = Html(self.headers, proxies, timeout)
-        self.manager = Manager()
         self.image = Image()
         self.video = Video()
         self.explore = Explore()
         self.download = Download(
-            self.manager,
             path,
             folder,
             self.headers,