C# 实现字符串文本换行的方法，文本如何换行

static void Main(string[] args)
{
    Console.WriteLine(WrapText("HelloWord", 2));
    Console.Read();
}

/// <summary>
/// 字符串文本换行
/// <para>
/// eg:WrapText("HelloWord", 2);==>"He\r\nll\r\noW\r\nord"
/// </para>
/// </summary>
/// <param name="input">传入文本</param>
/// <param name="width">每行宽度, 每多少字符换行</param>
/// <returns></returns>
public static string WrapText(string input, int width)
{
    // 获取字符串长度
    int length = input.Length;
    StringBuilder sb = new StringBuilder(input);
    if (width > 0 && length > width)
    {
        // 计算需要阻断字符长度
        int breakLength = sb.Length / width;
        for (int i = 0; i < breakLength; i++)
        {
            // 计算插入位置
            int insertPosition = i * width;
            if (insertPosition != 0)
            {
                int offset = (i - 1) * 2;
                sb.Insert(insertPosition + offset, Environment.NewLine);
            }
        }
    }

    return sb.ToString();
}