g="-"
    If x+y-z<0 Then
        Goto 开始
    End if
    Goto 打印
End if
If g=2 Then
    g="+"
    If x+y+z>a Then
        Goto 开始
    End if
    Goto 打印
End if

Rem 打印
SayString x
SayString m
SayString y
SayString g
SayString z
SayString "="
KeyPress 9,1
L=L+1
C=C+1
If L=10 Then
    KeyPress 13,1
    L=0
End if
If c=b Then
  EndScript
End if
Goto 开始
End Sub