save project

a.py

-list_xx=['x',3,'xx',20,'xx',42]
-dict_xx = {'x':3,'xx':20,'xx':42}
-print()
-print()
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+# list_xx=['x',3,'xx',20,'xxx',42]
+# dict_xx = {'x':3,'xx':20,'xxx':42}
+# list_xx[3]=40
+# print(list_xx)
+# dict_xx['xx']=40
+# print(dict_xx)
+# list=[]
+# dict={}
+# dict['x']='xx'
+# print(dict['x']='xx')
+x={'x':1,'xx':2,'xxx':3}
+
+k=input('你要什么')
+if k in x:
+    print('叮~你的'+k+'需要支付'+str(x[k])+'元~')
+else:
+    print('没有你要的东西，滚！')
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