

1,任 意主机用%表示
create user 'iecase'@'localhost' identified by '123456'; create user 'itcase'@'%' identified by '123456'; drop user 'iecase'@'localhost';create user 'iecase'@'localhost' identified by '123456'; create user 'itcase'@'%' identified by '123456'; drop user 'iecase'@'localhost';




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