save project

diy.py

+cost= {'苹果':5.2,'山竹':12.9,'香蕉':2.4,'荔枝':15,'葡萄':9.3,'桂圆':8,'蓝莓':10,'李子':8}
+k=input('请输入水果名称：')
+v=input('请输入水果价钱：')
+if k in cost:
+    if float(v)<cost[k]
+        cost[k]=float(v)
+        print(k+'降价了，现价'+v+'元')
+    else:
+        cost[k] = float(v)
+        print(k+'的价钱'+v+'元已上传~')