單項(xiàng)選擇題設(shè)置openfiledialog1引用一個(gè)openfiledialog對(duì)象,則打開該對(duì)話框的正確代碼是()。

A.openfiledialog1.show()
B.openfiledialog1.showdialog()
C.openfiledialog1.open()
D.openfiledialog1.openandshow()


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