save project

diy

+username = "python"
+userpasswordn = "123"
+name = input
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diy.py

-# 持家小能手 (利用自动更新成绩程序的逻辑完成这个新项目)
-# 如果输入的水果价钱比字典中的低，则替换掉，反之则不更新
-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 int(v)<cost[k]:
-        cost[k]=int(v)#更新价钱
-        print(k+'降价了，现价'+v+'元')
-    else:
-        print(k+'涨价了，我们不买')
-else:
-    cost[k] = float(v)
-    print(k+'的价钱'+v+'元已上传~')
+username = "python"
+userpassword = "1"
+name = input("请输入用户名:")
+password =  input("请输入密码:")
+if name == username and password == userpassword :
+    print("登录成功！")
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