auto save

1.py

-try:
-    print(3/1)
-except:
-    print('不行')
-print(2/0)
+import func
+
+d = func.price()
+print(d)
+
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func.py

-total = []
+
 def price():
 def price():
+    total = []
     while True:
     while True:
         unit= input("请输入：")
         unit= input("请输入：")
         if unit== 'q':
         if unit== 'q':
             break
             break
         else:
         else:
-            total.append(unit)
-print(total)
+            try:
+                unit=int(unit) #尝试将输入的内容转换成整数
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+            except:
+                print('请输入正确的内容') #不能转换执行这一行
+            else:
+                total.append(unit) #能转换执行这一行
+    return total
+
+print(sum(price())) #sum(),Python自带的求和函数，可以求一个序列中所有数字的和
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