LIST的用法

Question

console控制台的 C#，list 是不是要比datatable快，请问 list绑定的格式是 谢谢

Answer 1

using System;
using System.Collections.Generic;public class Example
{
    public static void Main()
    {
        List<string> dinosaurs = new List<string>();        Console.WriteLine("\nCapacity: {0}", dinosaurs.Capacity);        dinosaurs.Add("Tyrannosaurus");
        dinosaurs.Add("Amargasaurus");
        dinosaurs.Add("Mamenchisaurus");
        dinosaurs.Add("Deinonychus");
        dinosaurs.Add("Compsognathus");        Console.WriteLine();
        foreach(string dinosaur in dinosaurs)
        {
            Console.WriteLine(dinosaur);
        }        Console.WriteLine("\nCapacity: {0}", dinosaurs.Capacity);
        Console.WriteLine("Count: {0}", dinosaurs.Count);        Console.WriteLine("\nContains(\"Deinonychus\"): {0}",
            dinosaurs.Contains("Deinonychus"));        Console.WriteLine("\nInsert(2, \"Compsognathus\")");
        dinosaurs.Insert(2, "Compsognathus");        Console.WriteLine();
        foreach(string dinosaur in dinosaurs)
        {
            Console.WriteLine(dinosaur);
        }        Console.WriteLine("\ndinosaurs[3]: {0}", dinosaurs[3]);        Console.WriteLine("\nRemove(\"Compsognathus\")");
        dinosaurs.Remove("Compsognathus");        Console.WriteLine();
        foreach(string dinosaur in dinosaurs)
        {
            Console.WriteLine(dinosaur);
        }        dinosaurs.TrimExcess();
        Console.WriteLine("\nTrimExcess()");
        Console.WriteLine("Capacity: {0}", dinosaurs.Capacity);
        Console.WriteLine("Count: {0}", dinosaurs.Count);        dinosaurs.Clear();
        Console.WriteLine("\nClear()");
        Console.WriteLine("Capacity: {0}", dinosaurs.Capacity);
        Console.WriteLine("Count: {0}", dinosaurs.Count);
    }
}/* This code example produces the following output:Capacity: 0Tyrannosaurus
Amargasaurus
Mamenchisaurus
Deinonychus
CompsognathusCapacity: 8
Count: 5Contains("Deinonychus"): TrueInsert(2, "Compsognathus")Tyrannosaurus
Amargasaurus
Compsognathus
Mamenchisaurus
Deinonychus
Compsognathusdinosaurs[3]: MamenchisaurusRemove("Compsognathus")Tyrannosaurus
Amargasaurus
Mamenchisaurus
Deinonychus
CompsognathusTrimExcess()
Capacity: 5
Count: 5Clear()
Capacity: 5
Count: 0
 */

Answer 2

List<String> strList = new List<String>();
strList.Add("one");
strList.Add("two");List<T>是支持泛型的集合类，DataTable代表内存数据的一个表

Answer 3

DataTable实现的是IListSource，他通过Ilist接口中的GetList绑定数据
List<T>实现的是IList接口，实现GetEnumerator方法

Answer 4

没测试过。 估计是list快。

Answer 5

其实...
LIST 跟 DATATABLE各有所长比如从数据库中读出来 就用datatable方便自己要生成一个操作数组 就LIST好啊.