save project

ygh

-total=[]
-while True:  
-    unit=input("请输入,")
+def new_input
+    total=[]
+    while True:  
+        unit=input("请输入(q退出)
         if unit=='q': 
         if unit=='q': 
              break
              break
         else:
         else:
+           try: 
+               unit=int(unit) 
+            except:
+                   print("请重新输入一个数字") 
+            else:
                  total.append(unit)   
                  total.append(unit)   
-
-
-
-
-
-
-
-
+            finally:    
+                print("===================================")
+            return unit 
+price=new.input()
+print("您一共消费了"+str(pay)+"元！扫码还是现金)