C# 中的 StringBuilder.ToString() 方法
csharpserver side programmingprogramming更新于 2025/9/21 19:22:17
C# 中的 StringBuilder.ToString() 方法用于将 StringBuilder 的值转换为字符串。
慢下来
我不是 −
public override string ToString (); public string ToString (int begnIndex, int len);
上面，参数 begnIndex 是本例中子字符串的起始位置，而 len 是子字符串的长度。
示例
现在让我们看一个例子−
using System;
using System.Text;
public class Demo{
public static void Main(){
StringBuilder strBuilder = new StringBuilder("Katie");
Console.WriteLine("String = "+strBuilder.ToString());
Console.WriteLine("
StringBuilder capacity = "+strBuilder.Capacity);
Console.WriteLine("StringBuilder length = "+strBuilder.Length);
strBuilder.EnsureCapacity(35);
Console.WriteLine("
StringBuilder capacity= "+strBuilder.Capacity);
Console.WriteLine("StringBuilder length = "+strBuilder.Length);
strBuilder.EnsureCapacity(0);
strBuilder.Length = 0;
Console.WriteLine("
StringBuilder capacity= "+strBuilder.Capacity);
Console.WriteLine("StringBuilder length = "+strBuilder.Length);
}
}
输出
这将产生以下输出 −
String = Katie StringBuilder capacity = 16 StringBuilder length = 5 StringBuilder capacity= 35 StringBuilder length = 5 StringBuilder capacity= 35 StringBuilder length = 0
示例
现在让我们看另一个例子 −
using System;
using System.Text;
public class Demo{
public static void Main(){
StringBuilder strBuilder = new StringBuilder("TomHanks");
Console.WriteLine("StringBuilder = "+strBuilder.ToString());
Console.WriteLine("String = "+strBuilder.ToString(3, 5));
Console.WriteLine("
StringBuilder capacity = "+strBuilder.Capacity);
Console.WriteLine("StringBuilder length = "+strBuilder.Length);
strBuilder.EnsureCapacity(35);
Console.WriteLine("
StringBuilder capacity= "+strBuilder.Capacity);
Console.WriteLine("StringBuilder length = "+strBuilder.Length);
strBuilder.EnsureCapacity(0);
strBuilder.Length = 0;
Console.WriteLine("
StringBuilder capacity= "+strBuilder.Capacity);
Console.WriteLine("StringBuilder length = "+strBuilder.Length);
}
}
输出
这将产生以下输出 −
StringBuilder = TomHanks String = Hanks StringBuilder capacity = 16 StringBuilder length = 8 StringBuilder capacity= 35 StringBuilder length = 8 StringBuilder capacity= 35 StringBuilder length = 0
