淺析C#數組操作方法
作者:佚名
這里介紹C#數組操作,以及介紹數組是相同類型的對象的集合。數組具有相同數據類型的項的有序集合。要訪問數組中的某個項,需要同時使用數組名稱及該項與數組起點之間的偏移量。
本文向大家介紹C#數組操作方法,可能好多人還不了解C#數組操作,沒有關系,看完本文你肯定有不少收獲,希望本文能教會你更多東西。
數組是相同類型的對象的集合。數組具有相同數據類型的項的有序集合。要訪問數組中的某個項,需要同時使用數組名稱及該項與數組起點之間的偏移量。由于數組幾乎可以為任意長度,因此可以使用數組存儲數千乃至數百萬個對象,但必須在創建數組時就確定其大小。數組中的每項都按索引進行訪問,索引是一個數字,指示對象在數組中的存儲位置或槽。
按順序演示了以下功能:
◆動態創建數組
◆數組快速排序
◆反轉數組元素
◆動態改變數組大小
◆檢索數組中元素
◆復制數組中多個元素
- namespace StringDemo
- {
- public partial class Form1 : Form
- {
- public Form1()
- {
- InitializeComponent();
- }
- private void button1_Click(object sender, EventArgs e)
- {
- System.Collections.ArrayList mystrlist = new System.Collections.ArrayList();
- mystrlist.Add("aaaaaaaa");
- mystrlist.Add("bbbbbbbb");
- mystrlist.Add("cccccccc");
- mystrlist.Add("dddddddd");
- foreach (string str in mystrlist)
- {
- textBox1.Text += str + "\r\n";
- }
- }
- private void button2_Click(object sender, EventArgs e)
- {
- String[] myArray = { "8", "one", "4", "0", "over", "the" };
- foreach (string str in myArray)
- textBox1.Text += str + "\r\n";
- textBox1.Text += "\r\n";
- Array.Sort(myArray);
- foreach (string str in myArray)
- textBox1.Text += str + "\r\n";
- }
- private void button3_Click(object sender, EventArgs e)
- {
- String[] myArray = { "8", "one", "4", "0", "over", "the" };
- foreach (string str in myArray)
- textBox1.Text += str + "\r\n";
- textBox1.Text += "\r\n";
- Array.Reverse(myArray);
- foreach (string str in myArray)
- textBox1.Text += str + "\r\n";
- }
- private void button4_Click(object sender, EventArgs e)
- {
- String[] myArray = { "one", "two", "three" };
- foreach (string str in myArray)
- textBox1.Text += str + "\r\n";
- textBox1.Text += "\r\n";
- Array.Resize(ref myArray, 5);
- myArray[3] = "aaa";
- myArray[4] = "bbb";
- foreach (string str in myArray)
- textBox1.Text += str + "\r\n";
- }
- private void button5_Click(object sender, EventArgs e)
- {
- string[] dinosaurs = { "Compsog0000nathus",
- "Amargasaurus", "Ovira0000ptor","Veloc0000iraptor",
- "Deinonychus","Dilop0000hosaurus","Gallimimus",
- "Triceratops"};
- foreach (string str in dinosaurs)
- textBox1.Text += str + "\r\n";
- textBox1.Text += "\r\n";
- //要自己寫一個SubStringis0000的函數,這是泛型編程
- string[] subArray = Array.FindAll(dinosaurs,SubStringis0000);
- foreach (string str in subArray)
- textBox1.Text += str + "\r\n";
- }
- private static bool SubStringis0000(string str)
- {
- if(str.Contains ("0000"))
- return true ;
- else
- return false ;
- }
- private void button6_Click(object sender, EventArgs e)
- {
- string[] dinosaurs = { "Compsog0000nathus",
- "Amargasaurus", "Ovira0000ptor","Veloc0000iraptor",
- "Deinonychus","Dilop0000hosaurus","Gallimimus",
- "Triceratops"};
- foreach (string str in dinosaurs)
- textBox1.Text += str + "\r\n";
- textBox1.Text += "\r\n";
- string[] deststr = new string[2];
- //Copy還有很多類型的參數,比如數組復制等。
- Array.Copy(dinosaurs, 2, deststr, 0, 2);
- foreach (string str in deststr)
- textBox1.Text += str + "\r\n";
- }
- private void button7_Click(object sender, EventArgs e)
- {
- textBox1.Text = "";
- }
- }
- }
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責任編輯:佚名
來源:
51CTO