[单项选择]在窗体中添加一个通用对话框Commondialog1和一个命令按钮Command1，当单击按钮时，打开颜色对话框，能实现此功能的程序段是
A. Private Sub Command1_Click() CommondialogShowOpen End Sub
B. Private Sub Command1_Click() Commondialog1.ShowColor End Sub
C. PrivateSubCommand1_Click() Commondialog1.ShowOpen Commondialog1.ShowFont End Sub
D. Private Sub Command1_Click() Commondialog1.ShowColor Commondialog1.ShowHelp End Sub

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[单项选择]在窗体中添加一个通用对话框Commondialog1和一个命令按钮Command1，当单击按钮时，打开颜色对话框，能实现此功能的程序段是
A. Private　Sub　Command1＿Click(　) 　 Commondialog1.ShowOpen End Sub
B. Private　Sub　Command1_Click(　) 　　　　 Commondialog1.ShowColor End Sub
C. Private Sub Command1_Click( ) Commondialog1.ShowOpen Commondialog1.ShowFont End Sub
D. Private Sub Command1_Click( ) Commondialog1.ShowColor Commondialog1.ShowHelp End Sub

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[单项选择]在窗体上画一个名为CommonDialog1的通用对话框，一个名称为Command1的命令按钮。要求单击命令按钮时，打开一个保存文件的通用对话框窗口。该窗口的标题为“Save”，默认文件名为“SaveFile"，在“文件类型”栏中显示“*.txt”。能够满足上述要求的程序是 ______ 。
A. Private Sub Command1_ Click() CommonDialog1. FileName = "SaveFile" CommonDialog1. Filter = "All Files ｜ *.* ｜*.txt *.txt｜ *.doc｜ *.doc" CommonDialog1. Filterlndex = 2 CommonDialog1. DialogTitle = "Save" CommonDialog1. Action = 2 End Sub
B. Private Sub Command1_Click() CommonDialog1. FileName = "SaveFile" CommonDialog1. Filter = "All Files ｜*.* ｜ *.txt｜*.txt｜*.doc｜*.doc" CommonDialog1. Filterlndex = 1 CommonDialog1. DialogTitle = "Save" CommonDialog1. Action = 2 End Sub
C. Private Sub Command1_ Click() CommonDialog1. FileName = "Save" CommonDialog1. Filter = "All Files ｜%* ｜*.txt｜*.txt｜*.doc｜*.doc" CommonDialog1. Filterlndex = 2 CommonDialog1. DialogTitle = "Save" CommonDialog1. Action = 2 End Sub
D. Private Sub Command1_ Click() CommonDialog1. FileName = "SaveFile" CommonDialog1. Filter = "All Files ｜*.*｜*.txt｜*.txt｜*.doc｜*.doc" CommonDialog1. Filterlndex = 1 CommonDialog1. DialogTitle = "Save". CommonDialog1. Action = 1 End Sub

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[单项选择]在窗体上画一个名称为CommonDialog1的通用对话框，一个名称为Command1的命令按钮，要求单击命令按钮时，打开一个保存文件的对话框，该窗口的标题为“Save”，缺省文件名称为“SaveFile”，在“文件类型”栏中显示*txt，则能够满足上述要求的程序是（）。
A. java
B. javac
C. javap
D. javadoc

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[单项选择]在窗体上画一个名称为CommonDialog1的通用对话框和一个名为Command1的命令按钮。要求实现这样一个功能：单击命令按钮后，打开一个通用对话框用于保存文件，其窗口标题为“保存”，默认文件名为Data，在“文件类型”栏中显示*.txt。下列程序中能实现以上功能的是______ 。
A. Private Sub Command1_ Click() CommonDialog1. FileName = "Data" CommonDialog1. Filter = "All Files｜*.｜* ｜(*.tx｜(*.do｜*.doc" CommonDialog1. Filterlndex = 2 CommonDialog1. DialogTitle = “保存” CommonDialog1. Action = 2 End Sub
B. Private Sub Command1_ Click() CommonDialog1. FileName = "Data" CommonDialog1. Filter = "All Files｜*.*｜(*.tx｜(*.do｜*.doc" CommonDialog1. FilterIndex = 2 CommonDialog1. DialogTitle =“保存” CommonDialog1. Action = 1 End Sub
C. Private Sub Command1_ Click() CommonDialog1. FileName = "Data" CommonDialog1. Filter = "All Files｜*.*｜(*.tx｜(*.do｜*.doc" CommonDialog1. FilterIndex = 1 CommonDialog1. DialogTitle = “保存” CommonDialog1. Action = 1 End Sub
D. Private Sub Command1_ Click() CommonDialog1. FileName = "Data" CommonDialog1. Filter = "All Files｜*.*｜(*.tx｜(*.do｜*.doc" CommonDialog1. FilterIndex = 1 CommonDialog1. DialogTitle = “保存” CommonDialog1. Action = 2 End Sub

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[单项选择]假定通用对话框的名称为CommonDialog1，命令按钮的名称为Command1，则单击命令按钮后，能使打开的对话框的标题为“New Title”的事件过程是（）。
A. Private Sub Commandl_Click() CommonDialog1.DialogTitle="NewTitle" CommonDialog1.ShowPrinter End Sub
B. Private Sub Command1_Click() CommonDialog1.DialogTitle="NewTitle" CommonDialog1.ShowFont End Sub
C. Private Sub Commslld1_CUck() CommonDialog1.DialogTifie="NewTitle" CommonDialog1.ShowOpen End Sub
D. PrivateSubCommand1_Click() CommonDialog1.DialogTitle”NewTitle” CommonDialog1.ShowColor End Sub

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