Can't connect to MySQL server on 'localhost' (10061)怎么办?

Can't connect to MySQL server on 'localhost' (10061)怎么办?
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Error:Can't connect to MySQL server on 'localhost' (10061)D:enkjhostzy1218webcoreincludeAloneDB.php:51
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出现这种情况是怎么回事?我用的是ShopEx[v4.8.3]版本!