diff --git a/toolbox.py b/toolbox.py
index 23bbbfb..10e5a87 100644
--- a/toolbox.py
+++ b/toolbox.py
@@ -764,4 +764,23 @@ def zip_folder(source_folder, dest_folder, zip_name):
 
 def gen_time_str():
     import time
-    return time.strftime("%Y-%m-%d-%H-%M-%S", time.localtime())
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+    return time.strftime("%Y-%m-%d-%H-%M-%S", time.localtime())
+
+
+class ProxyNetworkActivate():
+    """
+    这段代码定义了一个名为TempProxy的空上下文管理器, 用于给一小段代码上代理
+    """
+    def __enter__(self):
+        from toolbox import get_conf
+        proxies, = get_conf('proxies')
+        if 'no_proxy' in os.environ: os.environ.pop('no_proxy')
+        os.environ['HTTP_PROXY'] = proxies['http']
+        os.environ['HTTPS_PROXY'] = proxies['https']
+        return self
+
+    def __exit__(self, exc_type, exc_value, traceback):
+        os.environ['no_proxy'] = '*'
+        if 'HTTP_PROXY' in os.environ: os.environ.pop('HTTP_PROXY')
+        if 'HTTPS_PROXY' in os.environ: os.environ.pop('HTTPS_PROXY')
+        return
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