auto save

diy5.py

+abc={'苹果':3}
+d=input('你想要的的水果')
+e=input('价格是：')
+if d in abc:
+    if  int(e)>abc[d]:
+        print('涨价了')
+    else:
+        print('降价了')
+else:
+    abc[d]=int(e)
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