GRANT ALL ON *.* to username@'%' IDENTIFIED BY 'password';
FLUSH PRIVILEGES;
执行完后会在mysql.user表里面添加一条这样的记录
Host User ...
% username ...
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GRANT ALL ON *.* to username@'%' IDENTIFIED BY 'password'; FLUSH PRIVILEGES; 执行完后会在mysql.user表里面添加一条这样的记录 Host User ... % username ... 
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