在第五帧添加一个空的关键帧。在这一帧的 Action中写入这一段子程序:(如左图所示) Set Variable: "num"= Random (10) If(num=i Go to and stop (right") Else If(wrong=chance Go to and Stop( wrong) End If Set Variable: wrong"=wrong+1 End If▪ 在第五帧添加一个空的关键帧。在这一帧的 Action中写入这一段子程序：（如左图所示） Set Variable: "num" = Random (10) If (num=i) Go to and Stop ("right") Else If (wrong=chance) Go to and Stop ("wrong") End If Set Variable: "wrong" = wrong+1 End If