BN089-BS开发框架MVC4版/source20131023/Zephyr.Net/Zephyr.Utils/Base/String/StringOther.cs

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using System;
using System.Collections.Generic;
using System.Text;
using System.Text.RegularExpressions;
using System.Drawing;
namespace Zephyr.Utils
{
    public partial class ZString
    {
        /// <summary>
        /// 将字符串转换为Color
        /// </summary>
        /// <param name="color"></param>
        /// <returns></returns>
        public static Color ToColor(string color)
        {
            int red, green, blue = 0;
            char[] rgb;
            color = color.TrimStart('#');
            color = Regex.Replace(color.ToLower(), "[g-zG-Z]", "");
            switch (color.Length)
            {
                case 3:
                    rgb = color.ToCharArray();
                    red = Convert.ToInt32(rgb[0].ToString() + rgb[0].ToString(), 16);
                    green = Convert.ToInt32(rgb[1].ToString() + rgb[1].ToString(), 16);
                    blue = Convert.ToInt32(rgb[2].ToString() + rgb[2].ToString(), 16);
                    return Color.FromArgb(red, green, blue);
                case 6:
                    rgb = color.ToCharArray();
                    red = Convert.ToInt32(rgb[0].ToString() + rgb[1].ToString(), 16);
                    green = Convert.ToInt32(rgb[2].ToString() + rgb[3].ToString(), 16);
                    blue = Convert.ToInt32(rgb[4].ToString() + rgb[5].ToString(), 16);
                    return Color.FromArgb(red, green, blue);
                default:
                    return Color.FromName(color);

            }
        }

        /// <summary>
        /// 格式化字节数字符串（用于显示文件大小）
        /// </summary>
        /// <param name="bytes"></param>
        /// <returns></returns>
        public static string FormatBytesStr(int bytes)
        {
            if (bytes > 1073741824)
            {
                return ((double)(bytes / 1073741824)).ToString("0") + "G";
            }
            if (bytes > 1048576)
            {
                return ((double)(bytes / 1048576)).ToString("0") + "M";
            }
            if (bytes > 1024)
            {
                return ((double)(bytes / 1024)).ToString("0") + "K";
            }
            return bytes.ToString() + "Bytes";