在窗体上有一名为list1的列表框和名为Command1的命令按钮，要求程序运行后；如果单击命令按钮，则把列表框中所有的列表项目写到顺序文件list.txt 中。下列能完成该操作的程序是______。
A．Private Sub Command1_Click() Open “c:\listxt”For Input As #1 For i=0 To ListListCount-1Print #1，List1.List( Next i Close #1 End Sub
B．Private Sub Command1_lick() Open “c:\listxt”For Output As #1 For i=0 To List1.ListCountPrint #1，List1.List( Next i Close #1 End Sub
C．Private Sub Command1_Click() Open “c:\listxt”For Output As #1 For i=0 To List1.ListCount -1Print #1，List1. List( Next i C1ese #1 End Sub
D．Private Sub Command1_Click() Open “c:\listxt”For As #1 For i=0 To List1.ListCountPrint #1，List1.List( Next i Close #1 End Sub
