defremove_key(d,key):r=dict(d)delr[key]returnrx={1:2,3:4,4:3,2:1,0:0}print(remove_key(x,1))
defremove_key(d,key):r=dict(d)delr[key]returnrx={1:2,3:4,4:3,2:1,0:0}print(remove_key(x,1))
以下( )方法将键 / 值对数据存放到散列映射中, 该方法同时返回键所对应的值。 A: public V put(K key,V value) B: public V get(Object key) C: public V remove(Object key) D: public int size()
以下( )方法将键 / 值对数据存放到散列映射中, 该方法同时返回键所对应的值。 A: public V put(K key,V value) B: public V get(Object key) C: public V remove(Object key) D: public int size()
在以下的语句中,哪一个将移除一个主键和依赖于这个主键的所有约束 A: ALTER TABLE table B: DROP PRIMARY KEY CASECADE; C: ALTER TABLE table D: REMOVE CONSTRAINT PRIMARY KEY CASCADE; E: ALTER TABLE table F: DISABLE CONSTRAINT PRIMARY KEY CASCADE; G: 一个主键不能被移除
在以下的语句中,哪一个将移除一个主键和依赖于这个主键的所有约束 A: ALTER TABLE table B: DROP PRIMARY KEY CASECADE; C: ALTER TABLE table D: REMOVE CONSTRAINT PRIMARY KEY CASCADE; E: ALTER TABLE table F: DISABLE CONSTRAINT PRIMARY KEY CASCADE; G: 一个主键不能被移除
Heat the soup for ten minutes, and then _______from the stove. A: you should remove it B: removing it C: to remove it D: remove it
Heat the soup for ten minutes, and then _______from the stove. A: you should remove it B: removing it C: to remove it D: remove it
Given that a scoped attribute cart exist only in a user’s session, which two, taken independently, ensure the scoped attribute cart no longer exists?() A: ${cart = null } B: <c:remove var=”cart” /> C: <c:remove var=”${cart}” /> D: <c:remove var=”cart” scope=”session” /> E: <c:remove scope=”session”>cart</c:remove> F: <c:remove var=”${cart}” scope=”session” /> G: <c:remove scope=”session”>${cart}</c:remove>
Given that a scoped attribute cart exist only in a user’s session, which two, taken independently, ensure the scoped attribute cart no longer exists?() A: ${cart = null } B: <c:remove var=”cart” /> C: <c:remove var=”${cart}” /> D: <c:remove var=”cart” scope=”session” /> E: <c:remove scope=”session”>cart</c:remove> F: <c:remove var=”${cart}” scope=”session” /> G: <c:remove scope=”session”>${cart}</c:remove>
remove
remove
(Map)关于下列Map接口中常见的方法put方法表示放入一个键值对,如果键已存在则 ,如果键不存在则_______。remove方法接受1个参数,表示__________________。get方法表示获得key对应的值,get方法的参数表示key,返回值表示值(value)。
(Map)关于下列Map接口中常见的方法put方法表示放入一个键值对,如果键已存在则 ,如果键不存在则_______。remove方法接受1个参数,表示__________________。get方法表示获得key对应的值,get方法的参数表示key,返回值表示值(value)。
According to the main area of pixels in the histogram, the tone can be divided into A: Low key, high key, middle key B: Hard tone, soft tone C: Long key, short key D: Long key, middle key, short key
According to the main area of pixels in the histogram, the tone can be divided into A: Low key, high key, middle key B: Hard tone, soft tone C: Long key, short key D: Long key, middle key, short key
HashMap中的put()方法参数是() A: put(value,key) B: put(key,key) C: put(key,value) D: put(key,key)
HashMap中的put()方法参数是() A: put(value,key) B: put(key,key) C: put(key,value) D: put(key,key)
关键码key实际存放的位置是: A: key B: key - 1 C: hash(key) D: hash(hash(key))
关键码key实际存放的位置是: A: key B: key - 1 C: hash(key) D: hash(hash(key))