sample45.cs

C#函数手册

namespace apiBook
{
	using System;
	using System.Text;
	public class TestStrBuilderClass
	{
		public static void Main()
		{
			StringBuilder sb=new StringBuilder("one ");
			Console.WriteLine("sb="+sb);
			Console.WriteLine("sb的长度"+sb.Length+",sb的容量"+sb.Capacity+"sb的最大容量"+sb.MaxCapacity);
			sb.AppendFormat("{1} {0:#######} ","seven","six");
			//使用AppendFormat方法添加内容
			sb.Insert(4,"two three four five ");
			//使用Insert方法插入子字符串
			string s="one";
			Console.WriteLine(sb);
			Console.WriteLine("sb的长度"+sb.Length+",sb的容量"+sb.Capacity+"sb的最大容量"+sb.MaxCapacity);
			sb.Remove(4,10);
			//使用Remove方法移除子串
			Console.WriteLine(sb);
			Console.WriteLine("sb的长度"+sb.Length+",sb的容量"+sb.Capacity+"sb的最大容量"+sb.MaxCapacity);
			sb.Replace("four ","IV ");
			//使用Replace方法代替现有的子串
			Console.WriteLine(sb);
			Console.WriteLine("sb的长度"+sb.Length+",sb的容量"+sb.Capacity+"sb的最大容量"+sb.MaxCapacity);
			Console.WriteLine("EnsureCapacity="+sb.EnsureCapacity(50));
			//使用EnsureCapacity方法确保起最小容量，返回当前容量
			string temps=sb.ToString(0,3);
			//使用ToString方法获取某子串的String对象
			Console.WriteLine("sb.ToString(0,3)="+temps);
			Console.WriteLine("s="+s);
			Console.WriteLine("转换来的temps的内容是否相同s?"+temps.Equals(s));
			sb.Remove(3,sb.Length-3);
			Console.WriteLine("sb的长度"+sb.Length+",sb的容量"+sb.Capacity+"sb的最大容量"+sb.MaxCapacity);
		}
	}
}