save project

MAKCOO.py

@@ -4,4 +4,20 @@ while true:
     if unit=='q':
     if unit=='q':
         break
         break
     else:
     else:
-        total.append(unit)
+        try:
\ No newline at end of file
+            unit=int(unit)
+        except:
+            print("请重新输入一个数字")
+        else:
+             total.append(unit)
+        finally:
+            print("===================")
+    return total
+def sun(money):
+    count=0
+    for i in money:
+        count=count+1
+    return count
+price=new_input()
+pay=sum(price)
+print("您一共消费了"+str(pay)+"元,扫码还是现金呢?")