input+select输入汉字或拼音快速选择数据第2步(后附生成字符串拼音、取汉字首字母的方法) - ASP.NET(webform)

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input+select输入汉字或拼音快速选择数据第2步(后附生成字符串拼音、取汉字首字母的方法)

给狼子留言

所属栏目：ASP.NET(webform) 时间：2010-11-26 14:26 作者：狼子

第1步：http://www.nnllok.cn/Read.aspx?id=466

第2步：http://www.nnllok.cn/Read.aspx?id=467

again：http://www.nnllok.cn/Read.aspx?id=468

第3步：http://www.nnllok.cn/Read.aspx?id=469

第4步：http://www.nnllok.cn/Read.aspx?id=470

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修正了第1步里的很多问题，像回车提交和点按钮提交之间有冲突，像文本框的下拉提示没有设置AutoCompleteType属性，像加入了返回select控件value值的hidden，做到可以输入中文或者拼音，都可以取到正确的值

现在记录这第2步，我卡在这里了，我想要一个页面，可以有两个这样的文本框，他们选择的数据是相同的

选择的数据相同，我要做的是什么呢？我在想。。。我在想。。。

我最后是要做成一个asp.net的用户控件的，最后需要Text、Value两个属性，Text返回球队名称，Value返回球队编号，用在FormView里，绑定数据的是Value属性

这个用户控件，我在一个页面里，要放两个，一个是Home Team，一个是Away Team，我要做到，我的控件，调用的js脚本，只调用一个，写入的全局变量，只写入一个，读取的数据，只读取一次

先记录现在这个第2步，已经加入拼音的控件了，已经连接到数据库了，已经从数组读取数据了，同样是在ie8内核maxthon 2.5.15、chrome 7.0.517.43下测试通过

Phonics.aspx

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Phonics.aspx.cs" Inherits="Test_Phonics" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>无标题页</title>
</head>
<body id="myBody">
    <form id="form1" runat="server">
    <div>
        字符串：<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
        <asp:Button ID="Button1" runat="server" Text="把字符串中的汉字转为拼音" OnClick="Button1_Click" />
    </div>

    <div style="padding-top:32px;">
        <asp:TextBox ID="TbWord" runat="server" AutoCompleteType="Disabled"></asp:TextBox>
        <div id="wordSelectDiv" style="z-index:99; position:absolute; display:none;">
            <select id="wordSelect" style="width:120px; height:0px;" multiple="multiple"></select>
        </div>
        <asp:HiddenField ID="HfWord" runat="server" Value="0" />
        <asp:Button ID="Button2" runat="server" Text="获取选中的值" OnClick="Button2_Click" />

        <script type="text/javascript">
            var wordInputObjName = "<% =TbWord.ClientID %>";
            var wordValueObjName = "<% =HfWord.ClientID %>";

            //select text
            var wordArray = new Array (<asp:Literal ID="LtWord" runat="server"></asp:Literal>);

            //select value
            var wordIdArray = [<asp:Literal ID="LtId" runat="server"></asp:Literal>];

            //select text phonics
            var phonicsArray = new Array (<asp:Literal ID="LtPhonics" runat="server"></asp:Literal>);

            //num
            var arrayLength = <asp:Literal ID="LtNum" runat="server"></asp:Literal>;
        </script>
        <script type="text/javascript" src="phonics.js"></script>
    </div>
    </form>
</body>
</html>

Phonics.aspx.cs

using System;
using System.Text;
using System.Data;

public partial class Test_Phonics : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            IniPhonicsArray();
        }
    }

    protected void Button1_Click(object sender, EventArgs e)
    {
        Response.Write("<br>" + NnllClass.GetPhonics(TextBox1.Text));
    }

    #region 读取拼音数据，写入客户端脚本的数组中
    private void IniPhonicsArray()
    {
        using (DataTable dt = DataClass.ExecuteSelectCommand("select PID, Word, Phonics from Test_Phonics order by Phonics"))
        {
            if (dt == null) return;

            StringBuilder sbPid = new StringBuilder("");
            StringBuilder sbWord = new StringBuilder("\"");
            StringBuilder sbPhonics = new StringBuilder("\"");

int num = dt.Rows.Count;
LtNum.Text = num.ToString();

            //添加第1行到倒数第二行，因为最后一行添加的后缀不同，所以另外添加
            if (num > 0)
            {
                num--;
                for (int index = 0; index < num; index++)
                {
                    sbPid.Append(dt.Rows[index]["PID"].ToString() + ",");
                    sbWord.Append(dt.Rows[index]["Word"].ToString() + "\", \"");
                    sbPhonics.Append(dt.Rows[index]["Phonics"].ToString() + "\", \"");
                }

                //加入最后一行
                sbPid.Append(dt.Rows[num]["PID"].ToString());
                sbWord.Append(dt.Rows[num]["Word"].ToString() + "\"");
                sbPhonics.Append(dt.Rows[num]["Phonics"].ToString() + "\"");
            }

            //记录数组
            LtId.Text = sbPid.ToString();
            LtWord.Text = sbWord.ToString();
            LtPhonics.Text = sbPhonics.ToString();
        }
    }
    #endregion

    protected void Button2_Click(object sender, EventArgs e)
    {
        Response.Write("<br>" + HfWord.Value + "，" + TbWord.Text);
    }
}

phonics.js

//定义全局变量，记录整个页面当前有焦点的可录入控件的id，这个值用于隐藏select时的判断
var activeObjId = "", lastActiveObjId = "";

var wordCount = 0;

var wordInputObj = document.getElementById(wordInputObjName);
var wordValueObj = document.getElementById(wordValueObjName);

var wordSelectObj = document.getElementById("wordSelect");
var wordSelectDivObj = document.getElementById("wordSelectDiv");

//利用activeObjId，控制select的显示和隐藏
function ShowHideSelect()
{
    var myForm = document.forms[0];
    var objType = ",text,select-one,select-multiple,checkbox,radio,file,";

    for(var i = 0; i < myForm.length; i++)
    {
        //控制select
        if(objType.indexOf(myForm.elements[i].type) != -1)
        {
            switch(myForm.elements[i].id)
            {
                case wordInputObj.id:
                    //input控件
                    //输入数据时，根据当前数据重新设置新的选项
                    myForm.elements[i].onkeyup = function() { ChangeOption(); }
                    //输入数据时，根据当前数据，从select中选中开头吻合的第一项
                    //myForm.elements[i].onkeyup = function() { SelectFirstOption(); }

                    //控制上下箭头、回车
                    myForm.elements[i].onkeydown = function() { SelectOption(); }

                    //给input添加onclick显示select，防止用户用箭头和回车选择一项后，重新点击鼠标要显示select再次选择
                    myForm.elements[i].onclick = function()
                    {
                        if(wordSelectDivObj.style.display == "none") wordSelectDivObj.style.display = "block";
                    };
                    break;
                case wordSelectObj.id:
                    //select控件
                    myForm.elements[i].onclick = function() { SetInputValue(); }
                    break;
                default:
                    //其它控件
                    myForm.elements[i].onfocus = function()
                    {
                        lastActiveObjId = activeObjId;
                        activeObjId = this.id;
                    }
                    break;
            }

            //input和select一样的事件
            if(myForm.elements[i].id == wordInputObj.id || myForm.elements[i].id == wordSelectObj.id)
            {
                myForm.elements[i].onfocus = function()
                {
                    lastActiveObjId = activeObjId;
                    activeObjId = this.id;
                    if(wordSelectDivObj.style.display == "none") wordSelectDivObj.style.display = "block";
                };

                myForm.elements[i].onblur = function()
                {
                    if(lastActiveObjId == wordInputObj.id && activeObjId == wordSelectObj.id)
                    {
                        //焦点从input转到select，显示
                        if(wordSelectDivObj.style.display == "none") wordSelectDivObj.style.display = "block";
                        wordSelectObj.focus();
                    }
                    else
                    {
                        if(wordSelectDivObj.style.display == "block")
                        {
                            wordSelectDivObj.style.display = "none";

                            if(wordInputObj.value == "")
                            {
                                //没有录入数据
                                wordValueObj.value = "0";
                            }
                            else
                            {
                                //根据录入的数据，设置最后的录入值，保证值在选项中肯定存在
                                if(wordCount == 0)
                                {
                                    wordInputObj.value = "";
                                    wordValueObj.value = "0";
                                }
                                else
                                {
                                    wordInputObj.value = wordSelectObj.options[0].text;
                                    wordValueObj.value = wordSelectObj.options[0].value;
                                }
                            }
                        }
                    }
                }
            }
        }
    }
}

//点击select选择一项时，设置这一项的值到input
function SetInputValue()
{
    wordInputObj.value = wordSelectObj.options[wordSelectObj.selectedIndex].text;
    wordValueObj.value = wordSelectObj.options[wordSelectObj.selectedIndex].value;
    wordSelectDivObj.style.display = "none";
}

//如果在input里按了上箭头，select选上一项；按了下箭头则选下一项，按了回车则选中项
function SelectOption()
{
    //获取录入的键盘值：上箭头38、下箭头40、回车13
    if(window.event) e = window.event;
    var nowKeyCode = e.charCode || e.keyCode || e.which;

    if(nowKeyCode != 38 && nowKeyCode != 40 && nowKeyCode != 13) return;

//如果是一次性显示所有选项，选项不变，使用这个方法
//默认按input里录入的数据，选中select中开头相同的第一个
function SelectFirstOption()
{
    //获取录入的键盘值：上箭头38、下箭头40、回车13
    if(window.event) e = window.event;
    var nowKeyCode = e.charCode || e.keyCode || e.which;

    if(nowKeyCode == 38 || nowKeyCode == 40) return;

    var firstIndex = -1;
    var nowText, inputText;

    //当前录入值
    inputText = wordInputObj.value;

    //循环检查每一项，获取第一个开头吻合的选项
    for (var i = 0; i < wordCount; i++)
    {
        nowText = wordSelectObj.options[i].text;
        if(nowText.indexOf(inputText) == 0)
        {
            firstIndex = i;
            break;
        }
    }

    //设置第一个开头吻合的选项为选中项
    if(firstIndex > -1)
    {
        wordSelectObj.selectedIndex = firstIndex;
    }
}

//按当前录入的数据修改选项，只显示有关的数据，使用这个方法
//按input里录入的数据，修改select中的选项，加入数组中符合条件的选项，修改选项总和：wordCount
var lastText = "";
function ChangeOption()
{
    //获取录入的键盘值：上箭头38、下箭头40、回车13
    if(window.event) e = window.event;
    var nowKeyCode = e.charCode || e.keyCode || e.which;

    if(nowKeyCode == 38 || nowKeyCode == 40) return;

    var firstIndex = -1;
    var nowText, inputText;

    //当前录入值
    lastText = inputText;
    inputText = wordInputObj.value;

    if(lastText == inputText || inputText == "") return;

    //从数组中读取和当前录入值开头吻合的项加入或去除
    if(inputText.indexOf(lastText) == -1)
    {
        //全新录入，数据项全部删除后重新添加
        wordSelectObj.options.length = 0;
        wordCount = 0;
        for(var index = 0; index < arrayLength; index++)
        {
            if(wordArray[index].indexOf(inputText) == 0 || phonicsArray[index].indexOf(inputText) == 0)
            {
                wordSelectObj.options[wordCount] = new Option (wordArray[index], wordIdArray[index]);
                wordCount++;
            }
        }
        if(wordCount == 0)
        {
            wordSelectObj.style.height = "0px";
        }
        if(wordCount > 5)
        {
            wordSelectObj.style.height = "84px";
        }
        else
        {
            wordSelectObj.style.height = eval((wordCount + 1) * 14) + "px";
        }
    }
}

-------------------------------------------------------

2010-12-02 17:05 以下方法有错，正确方法见：http://www.nnllok.cn/Read.aspx?id=474

错误分析见：http://www.nnllok.cn/Read.aspx?id=473

-------------------------------------------------------

附上生成字符串拼音的方法

#region 取汉字字符串的拼音，如果字符串中包含非汉字，以原字符显示
    /// <summary>
    /// 取汉字字符串的拼音，如果字符串中包含非汉字，以原字符显示
    /// </summary>
    /// <param name="chinese">字符串</param>
    /// <returns></returns>
    public static string GetPhonics(string chinese)
    {
        if (String.IsNullOrEmpty(chinese)) return "";

//根据拼音分段汉字编码
int[] phonicsCode = new int[] { -20319, -20317, -20304, -20295, -20292, -20283, -20265, -20257, -20242, -20230, -20051, -20036, -20032, -20026, -20002, -19990, -19986, -19982, -19976, -19805, -19784, -19775, -19774, -19763, -19756, -19751, -19746, -19741, -19739, -19728, -19725, -19715, -19540, -19531, -19525, -19515, -19500, -19484, -19479, -19467, -19289, -19288, -19281, -19275, -19270, -19263, -19261, -19249, -19243, -19242, -19238, -19235, -19227, -19224, -19218, -19212, -19038, -19023, -19018, -19006, -19003, -18996, -18977, -18961, -18952, -18783, -18774, -18773, -18763, -18756, -18741, -18735, -18731, -18722, -18710, -18697, -18696, -18526, -18518, -18501, -18490, -18478, -18463, -18448, -18447, -18446, -18239, -18237, -18231, -18220, -18211, -18201, -18184, -18183, -18181, -18012, -17997, -17988, -17970, -17964, -17961, -17950, -17947, -17931, -17928, -17922, -17759, -17752, -17733, -17730, -17721, -17703, -17701, -17697, -17692, -17683, -17676, -17496, -17487, -17482, -17468, -17454, -17433, -17427, -17417, -17202, -17185, -16983, -16970, -16942, -16915, -16733, -16708, -16706, -16689, -16664, -16657, -16647, -16474, -16470, -16465, -16459, -16452, -16448, -16433, -16429, -16427, -16423, -16419, -16412, -16407, -16403, -16401, -16393, -16220, -16216, -16212, -16205, -16202, -16187, -16180, -16171, -16169, -16158, -16155, -15959, -15958, -15944, -15933, -15920, -15915, -15903, -15889, -15878, -15707, -15701, -15681, -15667, -15661, -15659, -15652, -15640, -15631, -15625, -15454, -15448, -15436, -15435, -15419, -15416, -15408, -15394, -15385, -15377, -15375, -15369, -15363, -15362, -15183, -15180, -15165, -15158, -15153, -15150, -15149, -15144, -15143, -15141, -15140, -15139, -15128, -15121, -15119, -15117, -15110, -15109, -14941, -14937, -14933, -14930, -14929, -14928, -14926, -14922, -14921, -14914, -14908, -14902, -14894, -14889, -14882, -14873, -14871, -14857, -14678, -14674, -14670, -14668, -14663, -14654, -14645, -14630, -14594, -14429, -14407, -14399, -14384, -14379, -14368, -14355, -14353, -14345, -14170, -14159, -14151, -14149, -14145, -14140, -14137, -14135, -14125, -14123, -14122, -14112, -14109, -14099, -14097, -14094, -14092, -14090, -14087, -14083, -13917, -13914, -13910, -13907, -13906, -13905, -13896, -13894, -13878, -13870, -13859, -13847, -13831, -13658, -13611, -13601, -13406, -13404, -13400, -13398, -13395, -13391, -13387, -13383, -13367, -13359, -13356, -13343, -13340, -13329, -13326, -13318, -13147, -13138, -13120, -13107, -13096, -13095, -13091, -13076, -13068, -13063, -13060, -12888, -12875, -12871, -12860, -12858, -12852, -12849, -12838, -12831, -12829, -12812, -12802, -12607, -12597, -12594, -12585, -12556, -12359, -12346, -12320, -12300, -12120, -12099, -12089, -12074, -12067, -12058, -12039, -11867, -11861, -11847, -11831, -11798, -11781, -11604, -11589, -11536, -11358, -11340, -11339, -11324, -11303, -11097, -11077, -11067, -11055, -11052, -11045, -11041, -11038, -11024, -11020, -11019, -11018, -11014, -10838, -10832, -10815, -10800, -10790, -10780, -10764, -10587, -10544, -10533, -10519, -10331, -10329, -10328, -10322, -10315, -10309, -10307, -10296, -10281, -10274, -10270, -10262, -10260, -10256, -10254 };

//汉字对应的所有拼音
string[] phonics = new string[] { "a", "ai", "an", "ang", "ao", "ba", "bai", "ban", "bang", "bao", "bei", "ben", "beng", "bi", "bian", "biao", "bie", "bin", "bing", "bo", "bu", "ca", "cai", "can", "cang", "cao", "ce", "ceng", "cha", "chai", "chan", "chang", "chao", "che", "chen", "cheng", "chi", "chong", "chou", "chu", "chuai", "chuan", "chuang", "chui", "chun", "chuo", "ci", "cong", "cou", "cu", "cuan", "cui", "cun", "cuo", "da", "dai", "dan", "dang", "dao", "de", "deng", "di", "dian", "diao", "die", "ding", "diu", "dong", "dou", "du", "duan", "dui", "dun", "duo", "e", "en", "er", "fa", "fan", "fang", "fei", "fen", "feng", "fo", "fou", "fu", "ga", "gai", "gan", "gang", "gao", "ge", "gei", "gen", "geng", "gong", "gou", "gu", "gua", "guai", "guan", "guang", "gui", "gun", "guo", "ha", "hai", "han", "hang", "hao", "he", "hei", "hen", "heng", "hong", "hou", "hu", "hua", "huai", "huan", "huang", "hui", "hun", "huo", "ji", "jia", "jian", "jiang", "jiao", "jie", "jin", "jing", "jiong", "jiu", "ju", "juan", "jue", "jun", "ka", "kai", "kan", "kang", "kao", "ke", "ken", "keng", "kong", "kou", "ku", "kua", "kuai", "kuan", "kuang", "kui", "kun", "kuo", "la", "lai", "lan", "lang", "lao", "le", "lei", "leng", "li", "lia", "lian", "liang", "liao", "lie", "lin", "ling", "liu", "long", "lou", "lu", "lv", "luan", "lue", "lun", "luo", "ma", "mai", "man", "mang", "mao", "me", "mei", "men", "meng", "mi", "mian", "miao", "mie", "min", "ming", "miu", "mo", "mou", "mu", "na", "nai", "nan", "nang", "nao", "ne", "nei", "nen", "neng", "ni", "nian", "niang", "niao", "nie", "nin", "ning", "niu", "nong", "nu", "nv", "nuan", "nue", "nuo", "o", "ou", "pa", "pai", "pan", "pang", "pao", "pei", "pen", "peng", "pi", "pian", "piao", "pie", "pin", "ping", "po", "pu", "qi", "qia", "qian", "qiang", "qiao", "qie", "qin", "qing", "qiong", "qiu", "qu", "quan", "que", "qun", "ran", "rang", "rao", "re", "ren", "reng", "ri", "rong", "rou", "ru", "ruan", "rui", "run", "ruo", "sa", "sai", "san", "sang", "sao", "se", "sen", "seng", "sha", "shai", "shan", "shang", "shao", "she", "shen", "sheng", "shi", "shou", "shu", "shua", "shuai", "shuan", "shuang", "shui", "shun", "shuo", "si", "song", "sou", "su", "suan", "sui", "sun", "suo", "ta", "tai", "tan", "tang", "tao", "te", "teng", "ti", "tian", "tiao", "tie", "ting", "tong", "tou", "tu", "tuan", "tui", "tun", "tuo", "wa", "wai", "wan", "wang", "wei", "wen", "weng", "wo", "wu", "xi", "xia", "xian", "xiang", "xiao", "xie", "xin", "xing", "xiong", "xiu", "xu", "xuan", "xue", "xun", "ya", "yan", "yang", "yao", "ye", "yi", "yin", "ying", "yo", "yong", "you", "yu", "yuan", "yue", "yun", "za", "zai", "zan", "zang", "zao", "ze", "zei", "zen", "zeng", "zha", "zhai", "zhan", "zhang", "zhao", "zhe", "zhen", "zheng", "zhi", "zhong", "zhou", "zhu", "zhua", "zhuai", "zhuan", "zhuang", "zhui", "zhun", "zhuo", "zi", "zong", "zou", "zu", "zuan", "zui", "zun", "zuo" };

StringBuilder sbPhonics = new StringBuilder("");

        //循环字符串中的每一个字符
        char[] cnChar = chinese.ToCharArray();
        foreach (char c in cnChar)
        {
            //如果不是双字节字符，则为原字符
            if (Encoding.Default.GetByteCount(c.ToString()) != 2)
            {
                sbPhonics.Append(c.ToString());
                continue;
            }

            //取双字节字符的ASCII码：双字节码为高位乘256，再加低位；改为无符号码，再减65536
            byte[] codebytes = Encoding.Default.GetBytes(c.ToString());
            int charCode = (int)codebytes[0] * 256 + (int)codebytes[1] - 65536;

            //循环拼音分段编码，根据ASCII码，获取对应的拼音
            int phonicsLen = phonicsCode.Length - 1;
            for (int i = phonicsLen; i >= 0; i--)
            {
                if (phonicsCode[i] <= charCode)
                {
                    sbPhonics.Append(phonics[i]);
                    break;
                }
            }
        }

        return sbPhonics.ToString();
    }
    #endregion

下面这个方法是取汉字首字母的，从网上一个vb的方法改成的，这个页面里没有用上，就是，我是根据这个方法改取字符串拼音的方法的，取ASCII码的计算方法相同，一起记录

#region 改写VB的方法取汉字首字母
    /// <summary>
    /// 从一个字符串中提取汉字首字母，如果是中间有别的字符，直接取回该字符
    /// </summary>
    /// <param name="chinese">要提取的字符串</param>
    /// <returns></returns>
    public static string GetPhonics(string chinese)
    {
        int len = chinese.Length;
        char[] charArray = new char[len];
        //byte[] byteArray = new byte[2];

        for (int i = 0; i < len; i++)
        {
            charArray[i] = GetLetter(chinese[i]);
            //byteArray = System.Text.Encoding.Default.GetBytes(chinese[i].ToString());
        }

        string txt = new string(charArray);
        return txt;
    }
    /// <summary>
    /// 取一个汉字的首字母
    /// </summary>
    /// <param name="c"></param>
    /// <returns></returns>
    private static char GetLetter(char c)
    {
        int codeNum;
        codeNum = 65536 + GetAscii(c);
        if (codeNum >= 45217 && codeNum <= 45252) { return 'A'; }
        else if (codeNum >= 45253 && codeNum <= 45760) { return 'B'; }
        else if (codeNum >= 45761 && codeNum <= 46317) { return 'C'; }
        else if (codeNum >= 46318 && codeNum <= 46825) { return 'D'; }
        else if (codeNum >= 46826 && codeNum <= 47009) { return 'E'; }
        else if (codeNum >= 47010 && codeNum <= 47296) { return 'F'; }
        else if (codeNum >= 47297 && codeNum <= 47613) { return 'G'; }
        else if (codeNum >= 47614 && codeNum <= 48118) { return 'H'; }
        else if (codeNum >= 48119 && codeNum <= 49061) { return 'J'; }
        else if (codeNum >= 49062 && codeNum <= 49323) { return 'K'; }
        else if (codeNum >= 49324 && codeNum <= 49895) { return 'L'; }
        else if (codeNum >= 49896 && codeNum <= 50370) { return 'M'; }
        else if (codeNum >= 50371 && codeNum <= 50613) { return 'N'; }
        else if (codeNum >= 50614 && codeNum <= 50621) { return 'O'; }
        else if (codeNum >= 50622 && codeNum <= 50905) { return 'P'; }
        else if (codeNum >= 50906 && codeNum <= 51386) { return 'Q'; }
        else if (codeNum >= 51387 && codeNum <= 51445) { return 'R'; }
        else if (codeNum >= 51446 && codeNum <= 52217) { return 'S'; }
        else if (codeNum >= 52218 && codeNum <= 52697) { return 'T'; }
        else if (codeNum >= 52698 && codeNum <= 52979) { return 'W'; }
        else if (codeNum >= 52980 && codeNum <= 53688) { return 'X'; }
        else if (codeNum >= 53689 && codeNum <= 54480) { return 'Y'; }
        else if (codeNum >= 54481 && codeNum <= 62289) { return 'Z'; }
        else return c;
    }
    /// <summary>
    /// 取一个字符的ASCII码
    /// </summary>
    /// <param name="c"></param>
    /// <returns></returns>
    private static int GetAscii(char c)
    {
        Encoding ecode = Encoding.GetEncoding("gb18030");
        byte[] codebytes = ecode.GetBytes(c.ToString());

        if (IsTwoBytesChar(c))
        {
            //双字节码为高位乘256，再加低位
            //该为无符号码，再减65536
            return (int)codebytes[0] * 256 + (int)codebytes[1] - 65536;
        }
        else
        {
            return (int)codebytes[0];
        }
    }
    /// <summary>
    /// 是否为双字节字符
    /// </summary>
    public static bool IsTwoBytesChar(char c)
    {
        string str = c.ToString();
        //使用中文支持编码
        Encoding ecode = Encoding.GetEncoding("gb18030");
        if (ecode.GetByteCount(str) == 2)
        {
            return true;
        }
        else
        {
            return false;
        }
    }
    #endregion