新手刚刚入门，程序调整了一下，再查看窗体的设计器就成了一片空白，只剩下如下的代码，求助大家。
<html><head><META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=UTF-8"><title></title><style>.ErrorStyle { font-family: tahoma; font-size: 11 pt; text-align: left}.DetailsStyle { font-family: tahoma; font-size: 10pt; text-align: left;text-indent: 0; word-spacing: 0; line-height: 100%; float: left; margin-top: 0; margin-bottom: 0}.StackStyleVisible { font-family: tahoma; font-size: 10pt; text-align: left; margin-left: 20; text-indent: 0}.StackStyleHidden { display:none; font-family: tahoma; font-size: 10pt; text-align: left; margin-left: 20; text-indent: 0}</style></head><body><DIV class="DetailsStyle" width="100%"><table border="0" width="100%" id="table1" height="100%" cellspacing="0" cellpadding="0"><tr><td height="40" bgcolor="#FF9999" width="8%" style="letter-spacing: 0" align="center"><img border="0" src="C:\Documents and Settings\IBM\Local Settings\Temp\125F30D.tmp" width="35" height="35" alt="ErrorImage" ></td><td height="40" bgcolor="#FF9999" width="91%" style="vertical-align: top; letter-spacing: 0" align="left"><b><font size="2" face="Arial" fontsize="70%">鍔犺浇璁捐鍣ㄦ椂閬囧埌涓€涓垨澶氫釜閿欒銆傝繖浜涢敊璇湪涓嬮潰鍒楀嚭銆備竴浜涢敊璇彲閫氳繃閲嶆柊鐢熸垚椤圭洰鏉ヤ慨澶嶏紝鑰屽彟涓€浜涢敊璇垯闇€瑕佹洿鏀逛唬鐮併€?/font><font size="2" face="Arial"></font></b></td></tr><tr><td colspan="2" align="left" valign="top"><DIV id="div1" class="ErrorStyle" width="100%"><span style="font-weight: 600"><br>ClassFactory cannot supply requested class (寮傚父鏉ヨ嚜 HRESULT:0x80040111 (CLASS_E_CLASSNOTAVAILABLE)) </span><br><a href="" id="details0">闅愯棌</a><font color="#0000FF">  </font></DIV> </td> </tr> <tr><td colspan="2" align="left" valign="top"><DIV id="div20" class="StackStyleVisible" width="100%"><br> 鍦?System.Windows.Forms.UnsafeNativeMethods.CoCreateInstance(Guid& clsid, Object punkOuter, Int32 context, Guid& iid)<br> 鍦?System.Windows.Forms.AxHost.CreateWithoutLicense(Guid clsid)<br> 鍦?System.Windows.Forms.AxHost.CreateInstanceCore(Guid clsid)<br> 鍦?System.Windows.Forms.AxHost.CreateInstance()<br> 鍦?System.Windows.Forms.AxHost.GetOcxCreate()<br> 鍦?System.Windows.Forms.AxHost.set_Site(ISite value)<br> 鍦?System.ComponentModel.Container.Add(IComponent component, String name)<br> 鍦?System.ComponentModel.Design.DesignerHost.Add(IComponent component, String name)<br> 鍦?System.ComponentModel.Design.DesignerHost.System.ComponentModel.Design.IDesignerHost.CreateComponent(Type componentType, String name)<br> 鍦?System.ComponentModel.Design.Serialization.DesignerSerializationManager.CreateInstance(Type type, ICollection arguments, String name, Boolean addToContainer)<br> 鍦?System.ComponentModel.Design.Serialization.DesignerSerializationManager.System.ComponentModel.Design.Serialization.IDesignerSerializationManager.CreateInstance(Type type, ICollection arguments, String name, Boolean addToContainer)<br> 鍦?System.ComponentModel.Design.Serialization.CodeDomSerializerBase.DeserializeInstance(IDesignerSerializationManager manager, Type type, Object[] parameters, String name, Boolean addToContainer)<br> 鍦?System.ComponentModel.Design.Serialization.ComponentCodeDomSerializer.DeserializeInstance(IDesignerSerializationManager manager, Type type, Object[] parameters, String name, Boolean addToContainer)<br> 鍦?System.ComponentModel.Design.Serialization.CodeDomSerializerBase.DeserializeExpression(IDesignerSerializationManager manager, String name, CodeExpression expression)<br> 鍦?System.ComponentModel.Design.Serialization.CodeDomSerializer.DeserializeStatementToInstance(IDesignerSerializationManager manager, CodeStatement statement)<br> 鍦?System.ComponentModel.Design.Serialization.CodeDomSerializer.Deserialize(IDesignerSerializationManager manager, Object codeObject)<br> 鍦?System.Windows.Forms.Design.ControlCodeDomSerializer.Deserialize(IDesignerSerializationManager manager, Object codeObject)<br> 鍦?System.ComponentModel.Design.Serialization.TypeCodeDomSerializer.DeserializeName(IDesignerSerializationManager manager, String name, CodeStatementCollection statements)</DIV></td></tr></table></div></body></html>
<html><head><META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=UTF-8"><title></title><style>.ErrorStyle { font-family: tahoma; font-size: 11 pt; text-align: left}.DetailsStyle { font-family: tahoma; font-size: 10pt; text-align: left;text-indent: 0; word-spacing: 0; line-height: 100%; float: left; margin-top: 0; margin-bottom: 0}.StackStyleVisible { font-family: tahoma; font-size: 10pt; text-align: left; margin-left: 20; text-indent: 0}.StackStyleHidden { display:none; font-family: tahoma; font-size: 10pt; text-align: left; margin-left: 20; text-indent: 0}</style></head><body><DIV class="DetailsStyle" width="100%"><table border="0" width="100%" id="table1" height="100%" cellspacing="0" cellpadding="0"><tr><td height="40" bgcolor="#FF9999" width="8%" style="letter-spacing: 0" align="center"><img border="0" src="C:\Documents and Settings\IBM\Local Settings\Temp\125F30D.tmp" width="35" height="35" alt="ErrorImage" ></td><td height="40" bgcolor="#FF9999" width="91%" style="vertical-align: top; letter-spacing: 0" align="left"><b><font size="2" face="Arial" fontsize="70%">鍔犺浇璁捐鍣ㄦ椂閬囧埌涓€涓垨澶氫釜閿欒銆傝繖浜涢敊璇湪涓嬮潰鍒楀嚭銆備竴浜涢敊璇彲閫氳繃閲嶆柊鐢熸垚椤圭洰鏉ヤ慨澶嶏紝鑰屽彟涓€浜涢敊璇垯闇€瑕佹洿鏀逛唬鐮併€?/font><font size="2" face="Arial"></font></b></td></tr><tr><td colspan="2" align="left" valign="top"><DIV id="div1" class="ErrorStyle" width="100%"><span style="font-weight: 600"><br>ClassFactory cannot supply requested class (寮傚父鏉ヨ嚜 HRESULT:0x80040111 (CLASS_E_CLASSNOTAVAILABLE)) </span><br><a href="" id="details0">闅愯棌</a><font color="#0000FF">  </font></DIV> </td> </tr> <tr><td colspan="2" align="left" valign="top"><DIV id="div20" class="StackStyleVisible" width="100%"><br> 鍦?System.Windows.Forms.UnsafeNativeMethods.CoCreateInstance(Guid& clsid, Object punkOuter, Int32 context, Guid& iid)<br> 鍦?System.Windows.Forms.AxHost.CreateWithoutLicense(Guid clsid)<br> 鍦?System.Windows.Forms.AxHost.CreateInstanceCore(Guid clsid)<br> 鍦?System.Windows.Forms.AxHost.CreateInstance()<br> 鍦?System.Windows.Forms.AxHost.GetOcxCreate()<br> 鍦?System.Windows.Forms.AxHost.set_Site(ISite value)<br> 鍦?System.ComponentModel.Container.Add(IComponent component, String name)<br> 鍦?System.ComponentModel.Design.DesignerHost.Add(IComponent component, String name)<br> 鍦?System.ComponentModel.Design.DesignerHost.System.ComponentModel.Design.IDesignerHost.CreateComponent(Type componentType, String name)<br> 鍦?System.ComponentModel.Design.Serialization.DesignerSerializationManager.CreateInstance(Type type, ICollection arguments, String name, Boolean addToContainer)<br> 鍦?System.ComponentModel.Design.Serialization.DesignerSerializationManager.System.ComponentModel.Design.Serialization.IDesignerSerializationManager.CreateInstance(Type type, ICollection arguments, String name, Boolean addToContainer)<br> 鍦?System.ComponentModel.Design.Serialization.CodeDomSerializerBase.DeserializeInstance(IDesignerSerializationManager manager, Type type, Object[] parameters, String name, Boolean addToContainer)<br> 鍦?System.ComponentModel.Design.Serialization.ComponentCodeDomSerializer.DeserializeInstance(IDesignerSerializationManager manager, Type type, Object[] parameters, String name, Boolean addToContainer)<br> 鍦?System.ComponentModel.Design.Serialization.CodeDomSerializerBase.DeserializeExpression(IDesignerSerializationManager manager, String name, CodeExpression expression)<br> 鍦?System.ComponentModel.Design.Serialization.CodeDomSerializer.DeserializeStatementToInstance(IDesignerSerializationManager manager, CodeStatement statement)<br> 鍦?System.ComponentModel.Design.Serialization.CodeDomSerializer.Deserialize(IDesignerSerializationManager manager, Object codeObject)<br> 鍦?System.Windows.Forms.Design.ControlCodeDomSerializer.Deserialize(IDesignerSerializationManager manager, Object codeObject)<br> 鍦?System.ComponentModel.Design.Serialization.TypeCodeDomSerializer.DeserializeName(IDesignerSerializationManager manager, String name, CodeStatementCollection statements)</DIV></td></tr></table></div></body></html>
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