我可以这样解决：
SELECt cnt, COUNT(cnt) FROM ( SELECt COUNT(visid) as cnt FROM vislog GROUP BY visid) x GROUP BY cnt ORDER BY cnt ASC
这一点
x很重要。
我可以这样解决：
SELECt cnt, COUNT(cnt) FROM ( SELECt COUNT(visid) as cnt FROM vislog GROUP BY visid) x GROUP BY cnt ORDER BY cnt ASC
这一点
x很重要。
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