Initial commit

unilabos/utils/decorator.py

@@ -0,0 +1,14 @@
+def singleton(cls):
+    """
+    单例装饰器
+    确保被装饰的类只有一个实例
+    """
+    instances = {}
+
+    def get_instance(*args, **kwargs):
+        if cls not in instances:
+            instances[cls] = cls(*args, **kwargs)
+        return instances[cls]
+
+    return get_instance
+