填空题 下列事件过程的功能是：建立一个名为Data1的随机文件，存放角度值及这些角度的正弦函数值和余弦函数值，角度为1 2，3，…，90。请在空白处填入适当的内容，将程序补充完整。
Private Type Ang
K As Integer
Sinx As Single
Cosx As Single
End TyPe
Dim Ksc As Ang
Private Sub Form_Click()
Dim Y As Single
Open "c:/Data1.txt" For Random As #2 Len=10
Y=3.14159/180
For i=1 T0 90
Ksc.K=i
Ksc.Sinx=Sin(i*Y)
Ksc.Cosx=Cos(i*Y)
______
Next
Close #2
End Sub