save project

asd.py

+furit={"西瓜":10,"草莓":10}
+while True:
+    k=input("水果？")
+    v=input("价格？")
+    if k in furit:   
+        if int(v)>furit[k]:
+            print("涨价")
+            furit[k]=int(v)
+        elif int(v)<furit[k]:
+            print("掉价")
+            furit[k]=int(v)
+        elif int(v)==furit[k]:
+            print("平价")
+            furit[k]=int(v)
+    else:
+        print("首次")
+        furit[k]=int(v)
\ No newline at end of file