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diy.py

@@ -7,4 +7,9 @@ b=['袁术','夏侯惇','曹操','关羽']
 #b.pop(3)
 #b.pop(-1)
 b.remove('关羽')
-print(b)
\ No newline at end of file
+print(b)
+
+a=['dd']
+b=['hh']
+a.extend(b)
+print(a)
\ No newline at end of file