网友您好， 请在下方输入框内输入要搜索的题目：
题目内容
（请给出正确答案）
字典的遍历有三种，keys，values，items。
参考答案
更多 “字典的遍历有三种，keys，values，items。” 相关考题
考题
(b) Prepare the balance sheet of York at 31 October 2006, using International Financial Reporting Standards,discussing the nature of the accounting treatments selected, the adjustments made and the values placedon the items in the balance sheet. (20 marks)
考题
以下描述中错误的是哪一项?
A.在遍历列表的同时可以修改列表本身，例如如下的代码可以做到。words = ['I', 'love', 'Python'] for w in words: if len(w) >4: words.insert(0, w)B.当在序列中循环访问元素时，如果要获取元素的下标，可以使用enumerate() 函数，例如 for i inenumerate(list)。C.如果要倒序遍历访问序列中的元素，可以对该序列使用reversed() 函数，例如 for i in reversed(list)。D.对字典进行遍历访问时，可以通过items()函数同时得到key, value值。例如 for k, v in scores.items()
考题
What is one reason that WPA encryption is preferred over WEP?（）A、A WPA key is longer and requires more special characters than the WEP key.B、The access point and the client are manually configured with different WPA key values.C、WPA key values remain the same until the client configuration is changed.D、The values of WPA keys can change dynamically while the system is used.
考题
多选题Evaluate the following statements： CREATE TABLE purchase_orders （po_id NUMBER（4）， po_date TIMESTAMP， supplier_id NUMBER（6）， po_total NUMBER（8，2）， CONSTRAINT order_pk PRIMARY KEY（po_id）） PARTITION BY RANGE（po_date） （PARTITION Q1 VALUES LESS THAN （TO_DATE（？1-apr-2007？d-mon-yyyy？）， PARTITION Q2 VALUES LESS THAN （TO_DATE（？1-jul-2007？d-mon-yyyy？）， PARTITION Q3 VALUES LESS THAN（TO_DATE（？1-oct - 2007？d-mon-yyyy？）， PARTITION Q4 VALUES LESS THAN （TO_DATE（？1-jan-2008？d-mon-yyyy？））； CREATE TABLE purchase_order_items （po_id NUMBER（4） NOT NULL， product_id NUMBER（6） NOT NULL， unit_price NUMBER（8，2）， quantity NUMBER（8）， CONSTRAINT po_items_fk FOREIGN KEY （po_id） REFERENCES purchase_orders（po_id）） PARTITION BY REFERENCE（po_items_fk）； What are the two consequences of the above statements？（）APartitions of PURCHASE_ORDER_ITEMS have system-generated names.BBoth PURCHASE_ORDERS and PURCHASE_ORDER_ITEMS tables are created with four partitions each.CPartitions of the PURCHASE_ORDER_ITEMS table exist in the same tablespaces as the partitions of the PURCHASE_ORDERS table.DThe PURCHASE_ORDER_ITEMS table inherits the partitioning key from the parent table by automatically duplicating the key columns.EPartition maintenance operations performed on the PURCHASE_ORDER_ITEMS table are automatically reflected in the PURCHASE_ORDERS table.
考题
单选题When creating a class that associates a set of keys with a set of values， which of these interfaces is most applicable？（）A
CollectionB
SetC
SortedSetD
Map
考题
单选题What is one reason that WPA encryption is preferred over WEP（）。A
A WPA key is longer and requires more special characters than the WEP key.B
The access point and the client are manually configured with different WPA key values.C
WPA key values remain the same until the client configuration is changed.D
The values of WPA keys can change dynamically while the system is used.
考题
单选题在python中，字典的遍历方式有几种（）A
1B
2C
3D
4
热门标签
最新试卷