DevExpress ASP.NET 使用经验谈(9)- Dev控件客户端事件 ClientSideEvents

来源:互联网 时间:1970-01-01

上一节,已经介绍了ASPxGridView的自定义列和基本事件 ,本节接着将介绍Dev控件的客户端事件模型。

在上节示例基础上,我们增加一行菜单,使用Dev的ASPxMenu来实现,如下图所示。

图一 添加菜单的界面

增加菜单的代码如下:

<dx:ASPxMenu ID="ASPxMenu1" runat="server" RenderMode="Lightweight" Width="100%" ItemAutoWidth="False" Theme="Aqua"> <Border BorderWidth="0px" /> <BorderTop BorderWidth="1px" /> <Items> <dx:MenuItem Text="新增" Image-Url="~/Assets/images/menu/Add_16x16.png" Name="new"></dx:MenuItem> <dx:MenuItem Text="编辑" Image-Url="~/Assets/images/menu/Edit_16x16.png" Name="edit"></dx:MenuItem> <dx:MenuItem Text="删除" Image-Url="~/Assets/images/menu/Delete_16x16.png" Name="delete"></dx:MenuItem> <dx:MenuItem Text="刷新" Image-Url="~/Assets/images/menu/Refresh_16x16.png" Name="refresh"></dx:MenuItem> </Items></dx:ASPxMenu>

DevExpress ASP.NET的控件,如ASPxButton,ASPxLabel,ASPxMenu、ASPxPopupMenu、ASPxGridView、

ASPxTreeList、ASPxPopupControl等,它们都有一个统一的ClientSideEvents事件模型,提供控件的客户端事件支持。

此例中的ASPxMenu,如何来增加ClientSideEvents客户端事件操作呢,代码如下:

<dx:ASPxMenu ID="ASPxMenu1" runat="server" RenderMode="Lightweight" Width="100%" ItemAutoWidth="False" Theme="Aqua"> <Border BorderWidth="0px" /> <BorderTop BorderWidth="1px" /> <Items> <dx:MenuItem Text="新增" Image-Url="~/Assets/images/menu/Add_16x16.png" Name="new"></dx:MenuItem> <dx:MenuItem Text="编辑" Image-Url="~/Assets/images/menu/Edit_16x16.png" Name="edit"></dx:MenuItem> <dx:MenuItem Text="删除" Image-Url="~/Assets/images/menu/Delete_16x16.png" Name="delete"></dx:MenuItem> <dx:MenuItem Text="刷新" Image-Url="~/Assets/images/menu/Refresh_16x16.png" Name="refresh"></dx:MenuItem> </Items> <ClientSideEvents ItemClick="function(s, e) {MenuItemClick(s,e);}" /> </dx:ASPxMenu>

同时定义了Javascript方法MenuItemClick,来响应菜单项的Click事件操作:

function MenuItemClick(s, e) { //通过e.item.name来区别由Menu的哪一项来触发 switch (e.item.name) { case "new": //新增操作 break; case "edit": //编辑操作 break; case "delete": //删除操作 break; case "refresh": //刷新操作 break; }}

客户端菜单项Click事件的骨架有了,如果来实现对ASPxGridView控件的上述操作呢?

此时,我们需要了解Dev控件的另外一个重要属性:ClientInstanceName,这个属性,为Dev的服务端控件提供了一个客户端的name,

定义客户端name后,ASPxGridView服务端控件,可以在客户端以客户端对象身份来进行操作和访问。

修改代码,为ASPxGridView1增加一个客户端名称:"grid"

<dx:ASPxGridView ID="ASPxGridView1" runat="server" AutoGenerateColumns="False" Width="100%"OnRowInserting="ASPxGridView1_RowInserting" ClientInstanceName="grid"OnRowUpdating="ASPxGridView1_RowUpdating"DataSourceID="XpoDataSource1" KeyFieldName="UserID" Theme="Aqua">......</dx:ASPxGridView>

修改MenuItemClick方法,增加【新增】、【编辑】操作代码:

function MenuItemClick(s, e) { //通过e.item.name来区别由Menu的哪一项来触发 switch (e.item.name) { case "new": //新增操作 grid.AddNewRow(); break; case "edit": var index = grid.GetFocusedRowIndex(); if (index != -1) { grid.StartEditRow(index); } else { alert('请选择要编辑的记录!'); } //编辑操作 break; case "delete": //删除操作 break; case "refresh": //刷新操作 break; } }

点击菜单项的【新增】,显示新增界面如下:

图二 新增界面

点击【编辑】,显示界面如下:

图三 编辑界面

注意:【新增】、【编辑】操作,分别使用了ASPxGridView客户端对象的方法:

新增行: grid.AddNewRow();

获取行索引:grid.GetFocusedRowIndex();

编辑行: grid.StartEditRow(index);

接下来,如何实现【删除】和【刷新】操作呢?这将使用Dev控件强大的Callback事件回调机制,通过客户端的PerformCallback

与服务端的CustomCallback事件回调结合,服务端的回调方法对客户端事件作出响应。

首先,我们增加服务端的Callback事件代码,选择OnCustomCallback,点击新增事件,后台代码自动完成对事件的添加:

添加事件如下:

生成的回调方法:

protected void ASPxGridView1_CustomCallback(object sender, ASPxGridViewCustomCallbackEventArgs e){}

接着,继续修改MenuItemClick方法,增加对Delete事件代码:

function MenuItemClick(s, e) { //通过e.item.name来区别由Menu的哪一项来触发 switch (e.item.name) { case "new": //新增操作 grid.AddNewRow(); break; case "edit": var index = grid.GetFocusedRowIndex(); if (index != -1) { grid.StartEditRow(index); } else { alert('请选择要编辑的记录!'); } //编辑操作 break; case "delete": var key = grid.GetRowKey(grid.GetFocusedRowIndex()); if (key != null && key != "") { if (window.confirm('你确定要删除这条记录吗?')) { grid.PerformCallback("[email protected]" + key); } } //删除操作 break; case "refresh": //刷新操作 break; }}

继续修改服务端回调方法:

protected void ASPxGridView1_CustomCallback(object sender, ASPxGridViewCustomCallbackEventArgs e) { string[] strParames = e.Parameters.ToString().Split(new char[] { '@' }); switch (strParames[0]) { case "delete": CriteriaOperator criteria = CriteriaOperator.Parse("[UserID]='" + strParames[1] + "'"); Users obj = session.FindObject<Users>(criteria); obj.Delete(); ASPxGridView1.DataBind(); break; }}

完成上述修改后,点击【删除】按钮,弹出删除确认对话框,点击”确定“,记录将被删除,ASPxGridView数据被刷新。

图四 点击删除,弹出确认对话框,并重新绑定数据

同理,我们实现【刷新】操作如下:

case "refresh":grid.PerformCallback("[email protected]"); //刷新操作break;

继续修改回调方法:

protected void ASPxGridView1_CustomCallback(object sender, ASPxGridViewCustomCallbackEventArgs e) { string[] strParames = e.Parameters.ToString().Split(new char[] { '@' }); switch (strParames[0]) { case "delete": CriteriaOperator criteria = CriteriaOperator.Parse("[UserID]='" + strParames[1] + "'"); Users obj = session.FindObject<Users>(criteria); obj.Delete(); ASPxGridView1.DataBind(); break; case "refresh": ASPxGridView1.DataBind(); break; } }

此时点击【刷新】按钮,数据将被刷新,如果效果不明显,可以手工修改数据库中的数据,以验证刷新的效果。

注意:【删除】操作,使用了ASPxGridView客户端对象的方法:

获取行主键:grid.GetRowKey(grid.GetFocusedRowIndex());

为了使【删除】、【刷新】操作在客户端能得到反馈,还可以在ASPxGridView的ClientSideEvents事件中增加:EndCallback,

修改服务端【删除】、【刷新】回调方法,增加如下代码:

ASPxGridView1.JSProperties.Remove("cpMsg");ASPxGridView1.JSProperties.Add("cpMsg", "删除成功");

注意:按Dev控件约定,此处添加JSProperties的key,只能以 cp 为前缀 。

protected void ASPxGridView1_CustomCallback(object sender, ASPxGridViewCustomCallbackEventArgs e) { string[] strParames = e.Parameters.ToString().Split(new char[] { '@' }); switch (strParames[0]) { case "delete": CriteriaOperator criteria = CriteriaOperator.Parse("[UserID]='" + strParames[1] + "'"); Users obj = session.FindObject<Users>(criteria); obj.Delete(); ASPxGridView1.DataBind(); ASPxGridView1.JSProperties.Remove("cpMsg"); ASPxGridView1.JSProperties.Add("cpMsg", "删除成功"); break; case "refresh": ASPxGridView1.DataBind(); ASPxGridView1.JSProperties.Remove("cpMsg"); ASPxGridView1.JSProperties.Add("cpMsg", "刷新成功"); break; } }

客户端响应EndCallback方法:

function EndCallback(s, e) {if (s.cpMsg) {alert(s.cpMsg);s.cpMsg = null;}}

此时,再进行【删除】、【刷新】按钮完成操作时,会弹出提醒框。

图五 EndCallback 刷新返回消息

图六 EndCallback 删除返回消息

在此基础上,通过对EndCallback返回的信息进行处理,可以扩展更友好的提醒。

除了CustomCallback,还有CustomDataCallback、CustomButtonCallback,使用方法类似,细节稍有不同。

CustomDataCallback:可用于前后台的数据传输和回调。

CustomButtonCallback:可以针对特定服务端Button进行回调。

注意:对于ASPxTreeList控件,我们将使用到的客户端方法。

新增树结点:tree.StartEditNewNode();

获取树节点的主键:var key = tree.GetFocusedNodeKey();

在下一节中,将介绍ASPxTreeList的使用,到时再对CustomDataCallback,CustomButtonCallback的使用进行

详细描述。

最后附上完整代码。

前台代码:

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %><%@ Register Assembly="DevExpress.Web.v12.2, Version=12.2.4.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a" Namespace="DevExpress.Web.ASPxMenu" TagPrefix="dx" %><%@ Register Assembly="DevExpress.Xpo.v12.2.Web, Version=12.2.4.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a" Namespace="DevExpress.Xpo" TagPrefix="dx" %><%@ Register Assembly="DevExpress.Web.v12.2, Version=12.2.4.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a" Namespace="DevExpress.Web.ASPxGridView" TagPrefix="dx" %><%@ Register Assembly="DevExpress.Web.v12.2, Version=12.2.4.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a" Namespace="DevExpress.Web.ASPxEditors" TagPrefix="dx" %><!DOCTYPE html><html xmlns="http://www.w3.org/1999/xhtml"><head runat="server"> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title></title> <script type="text/javascript"> function MenuItemClick(s, e) { //通过e.item.name来区别由Menu的哪一项来触发 switch (e.item.name) { case "new": //新增操作 grid.AddNewRow(); break; case "edit": var index = grid.GetFocusedRowIndex(); if (index != -1) { grid.StartEditRow(index); } else { alert('请选择要编辑的记录!'); } //编辑操作 break; case "delete": var key = grid.GetRowKey(grid.GetFocusedRowIndex()); if (key != null && key != "") { if (window.confirm('你确定要删除这条记录吗?')) { grid.PerformCallback("[email protected]" + key); } } //删除操作 break; case "refresh": grid.PerformCallback("[email protected]"); //刷新操作 break; } } function EndCallback(s, e) { if (s.cpMsg) { alert(s.cpMsg); s.cpMsg = null; } } </script></head><body> <form id="form1" runat="server"> <div> <p> <h1>Dev控件的客户端事件模型</h1> </p> <dx:ASPxMenu ID="ASPxMenu1" runat="server" RenderMode="Lightweight" Width="100%" ItemAutoWidth="False" Theme="Aqua"> <Border BorderWidth="0px" /> <BorderTop BorderWidth="1px" /> <Items> <dx:MenuItem Text="新增" Image-Url="~/Assets/images/menu/Add_16x16.png" Name="new"></dx:MenuItem> <dx:MenuItem Text="编辑" Image-Url="~/Assets/images/menu/Edit_16x16.png" Name="edit"></dx:MenuItem> <dx:MenuItem Text="删除" Image-Url="~/Assets/images/menu/Delete_16x16.png" Name="delete"></dx:MenuItem> <dx:MenuItem Text="刷新" Image-Url="~/Assets/images/menu/Refresh_16x16.png" Name="refresh"></dx:MenuItem> </Items> <ClientSideEvents ItemClick="function(s, e) {MenuItemClick(s,e);}" /> </dx:ASPxMenu> <dx:ASPxGridView ID="ASPxGridView1" runat="server" AutoGenerateColumns="False" Width="100%" OnRowInserting="ASPxGridView1_RowInserting" ClientInstanceName="grid" OnRowUpdating="ASPxGridView1_RowUpdating" OnCustomCallback="ASPxGridView1_CustomCallback" DataSourceID="XpoDataSource1" KeyFieldName="UserID" Theme="Aqua"> <ClientSideEvents EndCallback="EndCallback" /> <Columns> <dx:GridViewCommandColumn VisibleIndex="0" ButtonType="Image" Width="80px"> <EditButton Visible="true"> <Image ToolTip="编辑" Url="Assets/images/edit.png"></Image> </EditButton> <NewButton Visible="true"> <Image ToolTip="新增" Url="Assets/images/new.png"></Image> </NewButton> <DeleteButton Visible="true"> <Image ToolTip="删除" Url="Assets/images/delete.png"></Image> </DeleteButton> <UpdateButton Visible="true"> <Image ToolTip="保存" Url="Assets/images/save.gif"></Image> </UpdateButton> <CancelButton Visible="true"> <Image ToolTip="取消" Url="Assets/images/cancel.gif"></Image> </CancelButton> </dx:GridViewCommandColumn> <dx:GridViewDataTextColumn FieldName="UserID" ReadOnly="True" VisibleIndex="1" Visible="false"> </dx:GridViewDataTextColumn> <dx:GridViewDataTextColumn FieldName="UserName" VisibleIndex="2" Caption="用户姓名"> <EditFormSettings VisibleIndex="2" Visible="True" Caption="用户姓名" /> </dx:GridViewDataTextColumn> <dx:GridViewDataTextColumn FieldName="FirstName" VisibleIndex="3" Caption="名" Width="80px"> <EditFormSettings VisibleIndex="3" Visible="True" Caption="名" /> <CellStyle HorizontalAlign="Center" /> <HeaderStyle HorizontalAlign="Center" /> </dx:GridViewDataTextColumn> <dx:GridViewDataTextColumn FieldName="LastName" VisibleIndex="4" Caption="姓" Width="80px"> <EditFormSettings VisibleIndex="4" Visible="True" Caption="姓" /> <CellStyle HorizontalAlign="Center" /> <HeaderStyle HorizontalAlign="Center" /> </dx:GridViewDataTextColumn> <dx:GridViewDataTextColumn FieldName="MiddleName" VisibleIndex="5" Caption="教名" Width="100px"> <EditFormSettings VisibleIndex="5" Visible="False" Caption="教名" /> <CellStyle HorizontalAlign="Center" /> <HeaderStyle HorizontalAlign="Center" /> </dx:GridViewDataTextColumn> <dx:GridViewDataComboBoxColumn FieldName="Gender" VisibleIndex="6" Caption="性别" Width="80px"> <EditFormSettings VisibleIndex="4" Visible="True" Caption="性别" /> <CellStyle HorizontalAlign="Center" /> <HeaderStyle HorizontalAlign="Center" /> <PropertiesComboBox> <Items> <dx:ListEditItem Text="男" Value="男" /> <dx:ListEditItem Text="女" Value="女" /> </Items> </PropertiesComboBox> </dx:GridViewDataComboBoxColumn> <dx:GridViewDataTextColumn FieldName="Hobbies" VisibleIndex="7" Caption="兴趣爱好" Width="100px"> <EditFormSettings VisibleIndex="5" Visible="True" Caption="兴趣爱好" /> <CellStyle HorizontalAlign="Center" /> <HeaderStyle HorizontalAlign="Center" /> <EditItemTemplate> <table border="0"> <tr> <td> <dx:ASPxCheckBox ID="ASPxCheckBox_H1" runat="server" ClientInstanceName="cb_hob1" Text="阅读" Layout="Flow" OnInit="ASPxCheckBox_Hobbies_Init"> </dx:ASPxCheckBox> </td> <td> </td> <td> <dx:ASPxCheckBox ID="ASPxCheckBox_H2" ClientInstanceName="cb_hob2" runat="server" Text="思考" Layout="Flow" OnInit="ASPxCheckBox_Hobbies_Init"> </dx:ASPxCheckBox> </td> <td> </td> <td> <dx:ASPxCheckBox ID="ASPxCheckBox_H3" runat="server" ClientInstanceName="cb_hob3" Text="运动" Layout="Flow" OnInit="ASPxCheckBox_Hobbies_Init"> </dx:ASPxCheckBox> </td> <td> </td> <td> <dx:ASPxCheckBox ID="ASPxCheckBox_H4" runat="server" ClientInstanceName="cb_hob4" Text="社交" Layout="Flow" OnInit="ASPxCheckBox_Hobbies_Init"> </dx:ASPxCheckBox> </td> </tr> </table> </EditItemTemplate> </dx:GridViewDataTextColumn> <dx:GridViewDataTextColumn FieldName="EmailID" VisibleIndex="6" Caption="邮箱" Width="200px"> <EditFormSettings VisibleIndex="6" Visible="True" Caption="邮箱" ColumnSpan="2" /> </dx:GridViewDataTextColumn> <dx:GridViewDataDateColumn FieldName="CreateTime" VisibleIndex="7" Caption="创建时间" Width="100px"> <EditFormSettings VisibleIndex="5" Visible="False" Caption="创建时间" /> <CellStyle HorizontalAlign="Center" /> <HeaderStyle HorizontalAlign="Center" /> </dx:GridViewDataDateColumn> <dx:GridViewDataDateColumn FieldName="ModifyTime" VisibleIndex="7" Caption="修改时间" Width="100px"> <EditFormSettings VisibleIndex="5" Visible="False" Caption="修改时间" /> <CellStyle HorizontalAlign="Center" /> <HeaderStyle HorizontalAlign="Center" /> </dx:GridViewDataDateColumn> </Columns> <SettingsBehavior ConfirmDelete="true" AllowFocusedRow="true" AllowSelectSingleRowOnly="true" AllowSelectByRowClick="true" /> <SettingsEditing EditFormColumnCount="2" /> <Settings ShowFooter="True" /> <SettingsText EmptyDataRow="无记录" ConfirmDelete="确定删除吗?" /> <SettingsPager Mode="ShowPager" PageSize="3" /> </dx:ASPxGridView> </div> <dx:XpoDataSource ID="XpoDataSource1" runat="server" TypeName="XPOModel.DemoDB.Users"></dx:XpoDataSource> </form></body></html>

后台代码:

using System;using System.Collections.Generic;using System.Linq;using System.Web;using System.Web.UI;using System.Web.UI.WebControls;using System.Configuration;using DevExpress.Xpo;using DevExpress.Xpo.DB;using DevExpress.Web.ASPxGridView;using DevExpress.Web.ASPxEditors;using System.Collections;using DevExpress.Data.Filtering;using XPOModel.DemoDB;public partial class _Default : System.Web.UI.Page{ DevExpress.Xpo.Session session; protected void Page_Init(object sender, EventArgs e) { string provider = ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString;//获取数据库连接 IDataLayer datalayer = new SimpleDataLayer(XpoDefault.GetConnectionProvider(provider, AutoCreateOption.DatabaseAndSchema));//建立数据层XPO独有的 session = new DevExpress.Xpo.Session(datalayer); //将数据层和会话绑定 XpoDataSource1.Session = session; } protected void Page_Load(object sender, EventArgs e) { } protected void ASPxCheckBox_Hobbies_Init(object sender, EventArgs e) { ASPxCheckBox cblHb = sender as ASPxCheckBox; GridViewEditItemTemplateContainer container = cblHb.NamingContainer as GridViewEditItemTemplateContainer; string strHobbies = string.Empty; if (DataBinder.Eval(container.DataItem, "Hobbies") != null) strHobbies = DataBinder.Eval(container.DataItem, "Hobbies").ToString().Trim(); if (strHobbies.Contains(cblHb.Text)) { cblHb.Checked = true; } } protected void ASPxGridView1_RowInserting(object sender, DevExpress.Web.Data.ASPxDataInsertingEventArgs e) { //在RowInserting时,将当前时间赋值给“创建时间列”CreateTime赋值 e.NewValues["CreateTime"] = DateTime.Now; GridViewDataColumn columnHobbies = ASPxGridView1.Columns["Hobbies"] as GridViewDataColumn; //取出GridView的Column //通过ASPxGridView1.FindEditRowCellTemplateControl找出自定义的CheckBox ASPxCheckBox cbH1 = (ASPxGridView1.FindEditRowCellTemplateControl(columnHobbies, "ASPxCheckBox_H1") as ASPxCheckBox); ASPxCheckBox cbH2 = (ASPxGridView1.FindEditRowCellTemplateControl(columnHobbies, "ASPxCheckBox_H2") as ASPxCheckBox); ASPxCheckBox cbH3 = (ASPxGridView1.FindEditRowCellTemplateControl(columnHobbies, "ASPxCheckBox_H3") as ASPxCheckBox); ASPxCheckBox cbH4 = (ASPxGridView1.FindEditRowCellTemplateControl(columnHobbies, "ASPxCheckBox_H4") as ASPxCheckBox); ArrayList listHobbies = new ArrayList(); if (cbH1.Checked == true) { listHobbies.Add(cbH1.Text); } if (cbH2.Checked == true) { listHobbies.Add(cbH2.Text); } if (cbH3.Checked == true) { listHobbies.Add(cbH3.Text); } if (cbH4.Checked == true) { listHobbies.Add(cbH4.Text); } //通过 e.NewValues["Hobbies"]赋值 e.NewValues["Hobbies"] = string.Join(",", listHobbies.ToArray()); } protected void ASPxGridView1_RowUpdating(object sender, DevExpress.Web.Data.ASPxDataUpdatingEventArgs e) { //在RowUpdating时,将当前时间赋值给“创建时间列”ModifyTime赋值 e.NewValues["ModifyTime"] = DateTime.Now; GridViewDataColumn columnHobbies = ASPxGridView1.Columns["Hobbies"] as GridViewDataColumn;//取出GridView的Column //通过ASPxGridView1.FindEditRowCellTemplateControl找出自定义的CheckBox ASPxCheckBox cbH1 = (ASPxGridView1.FindEditRowCellTemplateControl(columnHobbies, "ASPxCheckBox_H1") as ASPxCheckBox); ASPxCheckBox cbH2 = (ASPxGridView1.FindEditRowCellTemplateControl(columnHobbies, "ASPxCheckBox_H2") as ASPxCheckBox); ASPxCheckBox cbH3 = (ASPxGridView1.FindEditRowCellTemplateControl(columnHobbies, "ASPxCheckBox_H3") as ASPxCheckBox); ASPxCheckBox cbH4 = (ASPxGridView1.FindEditRowCellTemplateControl(columnHobbies, "ASPxCheckBox_H4") as ASPxCheckBox); ArrayList listHobbies = new ArrayList(); if (cbH1.Checked == true) { listHobbies.Add(cbH1.Text); } if (cbH2.Checked == true) { listHobbies.Add(cbH2.Text); } if (cbH3.Checked == true) { listHobbies.Add(cbH3.Text); } if (cbH4.Checked == true) { listHobbies.Add(cbH4.Text); } //通过 e.NewValues["Hobbies"]赋值 e.NewValues["Hobbies"] = string.Join(",", listHobbies.ToArray()); } protected void ASPxGridView1_CustomCallback(object sender, ASPxGridViewCustomCallbackEventArgs e) { string[] strParames = e.Parameters.ToString().Split(new char[] { '@' }); switch (strParames[0]) { case "delete": CriteriaOperator criteria = CriteriaOperator.Parse("[UserID]='" + strParames[1] + "'"); Users obj = session.FindObject<Users>(criteria); obj.Delete(); ASPxGridView1.DataBind(); ASPxGridView1.JSProperties.Remove("cpMsg"); ASPxGridView1.JSProperties.Add("cpMsg", "删除成功"); break; case "refresh": ASPxGridView1.DataBind(); ASPxGridView1.JSProperties.Remove("cpMsg"); ASPxGridView1.JSProperties.Add("cpMsg", "刷新成功"); break; } }}

完整源码下载: http://pan.baidu.com/s/1kTj3QDL

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