C# 程式如何向連結串列中指定節點前新增一個節點
宣告一個 LinkedList,併為其新增節點。
string [] students = {"Tim","Jack","Henry","David","Tom"};
LinkedList<string> list = new LinkedList<string>(students);我們新增一個新節點。
var newNode = list.AddLast("Kevin");現在,要新增一個節點在指定節點前,使用 AddBefore() 方法。
list.AddBefore(newNode, "Matt");
現在我們來看看完整程式碼。
範例
using System;
using System.Collections.Generic;
class Demo {
static void Main() {
string [] students = {"Tim","Jack","Henry","David","Tom"};
LinkedList<string> list = new LinkedList<string>(students);
foreach (var stu in list) {
Console.WriteLine(stu);
}
// adding a node at the end
var newNode = list.AddLast("Kevin");
// adding a new node before the node added above
list.AddBefore(newNode, "Matt");
Console.WriteLine("LinkedList after adding new nodes...");
foreach (var stu in list) {
Console.WriteLine(stu);
}
}
}輸出
Tim Jack Henry David Tom LinkedList after adding new nodes... Tim Jack Henry David Tom Matt Kevin
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