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\u53cd\u8f6c\u94fe\u8868\u7b2c\u4e00\u6b65\uff1a<\/p>\n\n\n\n
\u5224\u65ad\u94fe\u8868\u662f\u5426\u4e3a\u7a7a\uff0c\u5982\u679c\u94fe\u8868\u4e3a\u7a7a\uff0c\u5219\u76f4\u63a5\u8fd4\u56denull\u3002<\/p>\n\n\n\n
if (this.head == null) { \/\/\u6ca1\u6709\u8282\u70b9\nreturn null;\n}<\/code><\/pre>\n\n\n\n\u53cd\u8f6c\u94fe\u8868\u7b2c\u4e8c\u6b65\uff1a<\/p>\n\n\n\n
\u5224\u65ad\u94fe\u8868\u662f\u5426\u53ea\u6709\u4e00\u4e2a\u8282\u70b9\uff0c\u5982\u679c\u5934\u7ed3\u70b9\u7684\u4e0b\u4e00\u8282\u70b9\u7b49\u4e8e\u7a7a\uff0c\u5219\u8bf4\u660e\u8be5\u94fe\u8868\u53ea\u6709\u4e00\u4e2a\u8282\u70b9\uff0c\u5373\u8fd4\u56de\u5934\u7ed3\u70b9\u3002<\/p>\n\n\n\n
\u53cd\u8f6c\u94fe\u8868\u7b2c\u4e09\u6b65\uff1a<\/p>\n\n\n\n
if (this.head.next == null) { \/\/\u53ea\u6709\u4e00\u4e2a\u8282\u70b9\nreturn this.head;\n}<\/code><\/pre>\n\n\n\n\/\/\u81f3\u5c11\u4e24\u4e2a\u8282\u70b9
\u7b2c\u4e09\u6b65\u8be6\u89e3\u5982\u4e0b\uff1a<\/p>\n\n\n\n
Node cur=this.head.next;\nthis.head.next=null;\nwhile (cur!=null){\nNode curNext=cur.next;\ncur.next=head;\nthis.head=cur;\ncur=curNext;\n}\nreturn head;<\/code><\/pre>\n\n\n\n\u94fe\u8868\u53cd\u8f6c\u540e\uff0c\u5b83\u539f\u672c\u7684\u5934\u7ed3\u70b9\u7684\u4e0b\u4e00\u8282\u70b9\u5c31\u4e3a\u7a7anull\u4e86\u3002\u4f46\u662f\u4e0d\u80fd\u5728\u4e00\u5f00\u59cb\u5c31\u5c06\u5934\u7ed3\u70b9\u7684\u4e0b\u4e00\u8282\u70b9\u7f6e\u4e3a\u7a7a\u3002\u56e0\u4e3a\u5c06\u5b83\u7f6e\u4e3a\u7a7a\u540e\uff0c\u4fbf\u5931\u53bb\u4e86\u4e0e\u94fe\u8868\u672c\u6765head.next\u7684\u8054\u7cfb\uff1b\u6240\u4ee5\uff0c\u6211\u4eec\u5b9a\u4e49\u4e00\u4e2acur\u8bb0\u5f55\u5934\u7ed3\u70b9\u4e0b\u4e00\u8282\u70b9\u7684\u4f4d\u7f6e\uff1b\u4e5f\u5c31\u662f\u8bf4\u8ba9head\u4e0d\u52a8\uff0c\u5c06\u8bb0\u5f55\u5934\u7ed3\u70b9\u4e0b\u4e00\u8282\u70b9\u4f4d\u7f6e\u7684cur\u7528\u5934\u63d2\u6cd5\u7684\u65b9\u5f0f\u63d2\u5165\u5230head\u7684\u524d\u8fb9\uff0c\u5728cur\u5934\u63d2\u5230head\u524d\u518d\u5b9a\u4e49\u4e00\u4e2acurNext\u8bb0\u5f55cur\u7684\u4e0b\u4e00\u8282\u70b9\uff0c\u4f7fcur\u5230\u4e86head\u524d\uff0c\u4e5f\u4e0d\u4f1a\u5931\u53bb\u4e0e\u540e\u8fb9\u8282\u70b9\u7684\u8054\u7cfb\u3002\u5f53\u6240\u6709\u7684\u94fe\u8868\u90fd\u53cd\u8f6c\u540e\uff0ccur\u5c31\u4f1a\u4e3a\u7a7a\u3002<\/p>\n\n\n\n
<\/p>\n\n\n\n
\u5b8c\u6574\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n\n\n\n
class Node{
public int val;
public Node next; \/\/\u7c7b\u578b\u662fNode null<\/p>\n\n\n\n
public Node(int val){
this.val=val;}<\/p>\n\n\n\n
}<\/p>\n\n\n\n
public class SingleLinkedList {
public Node head; \/\/\u53cd\u8f6c\u94fe\u8868
\/\/\u53cd\u8f6c\u94fe\u8868\u5e76\u4e0d\u80fd\u4f7f\u7528\u9006\u7f6e\u6570\u7ec4\uff0c\u9700\u8981\u6539\u53d8\u94fe\u8868\u5143\u7d20\u7684\u6307\u5411\uff08\u4f7f\u7528\u5934\u63d2\u6cd5\uff09
public Node reverseList() {
if (this.head == null) { \/\/\u6ca1\u6709\u8282\u70b9
return null;
}
if (this.head.next == null) { \/\/\u53ea\u6709\u4e00\u4e2a\u8282\u70b9
return this.head;
}
\/\/\u81f3\u5c11\u6709\u4e24\u4e2a\u8282\u70b9
Node cur=this.head.next;
this.head.next=null;
while (cur!=null){
Node curNext=cur.next;
cur.next=head;
this.head=cur;
cur=curNext;
}
return head;
}
}<\/p>\n\n\n\n
<\/p>\n\n\n\n
<\/p>\n\n\n\n
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