class1.cs

C#开发教程 由浅入深 配有实例 是初学者的好帮手

using System;
using System.Text;

namespace UseSB
{
	class UseSBApp
	{
		static void Main(string[] args)
		{
			StringBuilder sb = new StringBuilder("Pineapple");
			sb.Replace('e', 'X');
			sb.Insert(4, "Banana");
			sb.Append("Kiwi");
			sb.AppendFormat(", {0}:{1}", 123, 45.6789);
			sb.Remove(sb.Length - 3, 3);
			Console.WriteLine(sb);

			string s = sb.ToString().ToUpper();
			Console.WriteLine(s);
		}
	}
}