它对我来说很好。只需在其他帐户下添加分数。

It works fine for me. Just add scores under another account.

我有：

scores (
"<GKScore: 0x960e3e0><0x960e3e0> player=G:1208389607 rank=1 date=2012-01-19 12:56:47 +0000 value=27 formattedValue=27 context=(null)",
"<GKScore: 0x96a1bc0><0x96a1bc0> player=G:1176161436 rank=2 date=2012-01-19 08:35:06 +0000 value=16 formattedValue=16 context=(null)"

）

并居中标准控制器显示相同的结果。

And center by standard controller show same results.

谢谢，