s = "318714101223411624"
c=Mid(s, 1, 1):i=1:max=0
For j=2 To Len(s)
If t> c Or j = Len(s) Then
End If
Next j
上述程序段中方框处可选语句如下:
①i=j
②t=c
③c = Mid(s, j, 1)
④If j-i>max Then max=j-i
则(1)(2)(3)(4)处语句依次为( )