C#定义一个可变字符串

它的功能非常神奇，类似于一个字符串的对象，值可变。下面是它的一些用法

//示例①
System.Text.StringBuilder sb = new System.Text.StringBuilder();

//示例②
using System;
using System.Text;

public sealed class App
{
    static void Main()
    {
        // Create a StringBuilder that expects to hold 50 characters.
        // Initialize the StringBuilder with "ABC".
        StringBuilder sb = new StringBuilder("ABC", 50);

        // Append three characters (D, E, and F) to the end of the StringBuilder.
        sb.Append(new char[] { 'D', 'E', 'F' });

        // Append a format string to the end of the StringBuilder.
        sb.AppendFormat("GHI{0}{1}", 'J', 'k');

        // Display the number of characters in the StringBuilder and its string.
        Console.WriteLine("{0} chars: {1}", sb.Length, sb.ToString());

        // Insert a string at the beginning of the StringBuilder.
        sb.Insert(0, "Alphabet: ");

        // Replace all lowercase k's with uppercase K's.
        sb.Replace('k', 'K');

        // Display the number of characters in the StringBuilder and its string.
        Console.WriteLine("{0} chars: {1}", sb.Length, sb.ToString());
    }
}

// This code produces the following output.
//
// 11 chars: ABCDEFGHIJk
// 21 chars: Alphabet: ABCDEFGHIJK

相关推荐: C#高级应用之反射，把实体类数据反射到字典

/// <summary> /// 获取警报的端口状态 ///dictAlarmPort 自定义的字典名 /// </summary> private Dictionary<uint, Dictionary<string, …