.net 打开文件

 OpenFileDialog^ dlgOpenFile = gcnew OpenFileDialog ();
				 String^ fileName;
				 dlgOpenFile->InitialDirectory = "D:\\";
				 dlgOpenFile->Filter = "txt files (*.txt)|*.txt|All files (*.*)|*.*";
				 dlgOpenFile->FilterIndex = 1;
				 dlgOpenFile->RestoreDirectory = true ;
				 dlgOpenFile->ShowDialog();
				 fileName = dlgOpenFile->FileName;
				 TB_Path->Text = fileName;

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