C#中的List泛型类示例

using System;
using System.Collections.Generic;

class Program
{
    static void Main()
    {
        List cities = new List(); // List of city names
        cities.Add("San Diego");                  // String element 1
        cities.Add("Humboldt");                   // 2
        cities.Add("Los Angeles");                // 3
        cities.Add("Auburn");                     // 4

        // Write each city string.
        foreach (string city in cities)
        {
            Console.WriteLine(city);
        }
        Console.ReadKey();
    }
}

字符串相减

string str1="abcd".replace("d","");