From 912916a56b7f6469ce1c4cbf430f7c48ff918a3c Mon Sep 17 00:00:00 2001
From: zhang <zch921005@126.com>
Date: Mon, 8 Aug 2022 22:46:45 +0800
Subject: copy

---
 basics/opt/deep_copy_opt.py | 26 ++++++++++++++++++++++++++
 basics/python_basics.py     |  3 +++
 2 files changed, 29 insertions(+)
 create mode 100644 basics/opt/deep_copy_opt.py

(limited to 'basics')

diff --git a/basics/opt/deep_copy_opt.py b/basics/opt/deep_copy_opt.py
new file mode 100644
index 0000000..d537b15
--- /dev/null
+++ b/basics/opt/deep_copy_opt.py
@@ -0,0 +1,26 @@
+
+_dispatcher = {}
+
+def _copy_list(_l):
+    ret = _l.copy()
+    for idx, item in enumerate(ret):
+        cp = _dispatcher.get(type(item))
+        if cp is not None:
+            ret[idx] = cp(item)
+    return ret
+_dispatcher[list] = _copy_list
+
+def _copy_dict(d):
+    ret = d.copy()
+    for key, value in ret.items():
+        cp = _dispatcher.get(type(value))
+        if cp is not None:
+            ret[key] = cp(value)
+
+    return ret
+_dispatcher[dict] = _copy_dict
+
+
+if __name__ == '__main__':
+    l = [1, 2, 3]
+    _copy_list(l)
\ No newline at end of file
diff --git a/basics/python_basics.py b/basics/python_basics.py
index bf780cc..34b43e2 100644
--- a/basics/python_basics.py
+++ b/basics/python_basics.py
@@ -1,4 +1,6 @@
 
+import copy
+
 def check_num_id(i):
     a = i
     b = i
@@ -8,3 +10,4 @@ def check_num_id(i):
 if __name__ == '__main__':
     for i in range(200, 260):
         check_num_id(i)
+    copy.deepcopy()
-- 
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