力扣：203. 移除链表元素

LeetCode/src/main/java/com/code/leet/study/t20210207/RemoveElements.java

@@ -0,0 +1,29 @@
+package com.code.leet.study.t20210207;
+
+import com.code.leet.entiy.ListNode;
+
+/**
+ * 删除链表中等于给定值 val 的所有节点。
+ */
+public class RemoveElements {
+    public ListNode removeElements(ListNode head, int val) {
+        ListNode temp = head;
+        if (temp == null) {
+            return head;
+        }
+        while (temp.val == val) {
+            head = temp = temp.next;
+            if (temp == null) {
+                return head;
+            }
+        }
+        while (temp != null && temp.next != null) {
+            if (temp.next.val == val) {
+                temp.next = temp.next.next;
+            } else {
+                temp = temp.next;
+            }
+        }
+        return head;
+    }
+}