带头结点的单链表head为空的判定条件是()
A: head—>next= =NUL
B: head= =NULL
C: head—>next= =head
D: head!=NULL
A: head—>next= =NUL
B: head= =NULL
C: head—>next= =head
D: head!=NULL
举一反三
- 不带头结点的单链表head为空的判定条件是 A: head==NUL B: head->next==NULL C: head->next==head D: head!=NULL
- 不带头结点的单链表head为空的判定条件是 A: head==NUL B: head->next==NULL C: head->next==head D: head!=NULL
- 不带头结点的单链表head为空的判定条件() A: head==null B: head->next==null C: head->next==head D: head!=null
- 带头结点的单链表Head为空表的判定条件是( )。 A: Head->;next==Head B: Head->;next==NULL C: Head!=NULL D: Head==NULL
- 若不带头结点的单链表的头指针为head,则该链表为空的判定条件是 ( ) A: head==NULL B: head—>next==NULL C: head!=NULL D: head—>next==head