第一帧
Set Variable: "maxballs" = 100
Set Variable: "i" = 1
Set Property ("ball0", Visibility) = 0

第五帧
Duplicate Movie Clip ("ball" & (i - 1), "ball" & i, i )
Set Property ("ball" & i, Y Position) = GetProperty ( "ball" & (i - 1),_y ) + (i / 5)
Set Property ("ball" & i, X Position) = GetProperty ( "ball" & (i - 1),_x ) - 2
Set Property ("ball" & i, X Scale) = GetProperty ( "ball" & (i - 1),_xscale ) + 1
Set Variable: "i" = i + 1

第六帧
If (not (maxballs < i))
Go to and Play (5)
Else
Stop
End If
用了以上代码后无法产生雪花效果这是为什么？