前者实现双缓冲,后者没有

可惜不是你,陪我到最后
2007-02-02 14:00

2007-02-02 15:13
2007-02-02 15:22

2007-02-02 15:31
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2007-02-02 15:36
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2007-02-02 16:03
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2007-02-02 22:32