带头结点的单链表head为空的条件是 。
head->next==null
head->next==nullptr
head->next==NULL;
head ->next = NULL
L->next==null
head->next==NULL
head->next == NULL
Head->next == NULL;
head->next=NULL
head->next=null;
head-＞next＝null
head->next = NULL;
woaixinzhou 回复 woaixinzhou： head->next==NULL 答案为两个等号的相等
head - next = null;
head->next = head;
head->next==null;
head->next == null
head==null
head→next＝null
head==NULL
head->next=null
head next =Null
head->next = null
head。next==null
head->next=Null
L→next=Null
18726437686 回复 18726437686： head→next==NULL
head ->next=null;
head->next=NULL;
head->next == NULL;
head–>next==NULL
head-next＝＝Null
head-next=NULL;
head—＞next==null
L->next==NULL
Head -> next==null;
head->next = null;
head -> next == NULL
head->next==NUll
head->Next==NULL
l->next=null
L->next == NULL；
留心的老中医 回复 留心的老中医： 这里的单链表名字为ｈｅａｄ，ｈｅａｄ－＞ｎｅｘｔ＝＝ＮＵＬＬ；
L->next == NULL;
L->next=null
head->next==null 刚才写错了
head->next ==NULL
head->next==NU...
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