WinForm 下 UrlEncode

1. 方法1

System.Web.HttpUtility.UrlEncode(taobao, Encoding.GetEncoding("gb2312"));

2. 方法2

public static string UrlEncode(string url, Encoding encoding)
{
    StringBuilder sb = new StringBuilder();
    byte[] bytes = encoding.GetBytes(url);
    for (int i = 0; i < bytes.Length; i++)
    {
        sb.Append(@"%" + Convert.ToString(bytes[i], 16));
    }
    return (sb.ToString());
}