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파이썬함수연습.py

+a = 100
+def local_test():
+    a=200
+    print(a)
+print(a)
+local_test()
+print(a)
+
+print("==========")
+
+def global_test():
+    global a
+    a=200
+    print(a)
+print(a)
+global_test()
+print(a)