using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApplication1
{
  class SubStringTest
  {
     static void Main(string[] args) 
     {
       string oriString = "Hello,Kitty!"; //原始字符串
       string subString = ""; //截取后的字符串
       //輸出：He
       subString = oriString.Substring(0, 2);  //從第一個字符開始，截取2個字符
       Console.WriteLine(subString); 
       //輸出：llo
       subString = oriString.Substring(2,3);  //從第一個‘l'開始，截取3個字符 
       Console.WriteLine(subString); 
       //輸出：Kitty!
       subString = oriString.Substring(6);  //從第七個字符開始截取，到原始字符串結(jié)束 
       Console.WriteLine(subString); 
     } 
  }
}