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LinuxÏÂ,ÔËÐÐ killall -TERM mysqld
     WindowsÏ£¬Èç¹ûд³É·þÎñµÄ¿ÉÒÔÔËÐУºnet stop mysql,Èçδ¼ÓÔØÎª·þÎñ£¬¿ÉÖ±½ÓÔÚÈÎÎñ¹Ü  ÀíÆ÷ÖнøÐйرա£
2¡¢ÒÔ°²È«Ä£Ê½Æô¶¯MySQL
    
LinuxÏ£¬ÔËÐÐ mysqld_safe --skip-grant-tables &
     WindowsÏ£¬ÔÚÃüÁîÐÐÏÂÔËÐÐ X:/MySQL/bin/mysqld-nt.exe --skip-grant-tables
3¡¢Íê³ÉÉÏÊöÁ½²½ÒÔºó¾Í¿ÉÒÔ²»ÓÃÃÜÂë½øÈëMySQLÁË
     LinuxÏ£¬ÔËÐÐ mysql -u root
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     WindowsÏ£¬ÔËÐÐ X:/MySQL/bin/mysql -u root ½øÈë
4¡¢¸ü¸ÄÃÜÂë
     ʹÓÃÃüÁîÐÞ¸Ä:   
     mysqladmin -u root -p password NewPassword
    
     »òÕßʹÓà sql Ö±½ÓÐÞ¸ÄÓû§ÐÅÏ¢±í:
   
>use mysql;
¡¡ >select host, user, password from user;
    >update user set password=password("NewPassword") where user="root";
    >flush privileges;
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mysql>GRANT ALL PRIVILEGES ON *.* TO admin@localhost IDENTIFIED BY 'something' WITH GRANT OPTION;
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use mysql
update user set Password=password('newpassword') where User='root';
flush privileges;
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MYSQLADMIN -u root -p PASSWORD mypasswd
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4.ʹÓÃSET PASSWORDÓï¾ ......

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pingsql.c:(.text+0x7c): undefined reference to `mysql_init'
pingsql.c:(.text+0xe1): undefined reference to `mysql_real_connect'
pingsql.c:(.text+0xff): undefined reference to `mysql_close'
pingsql.c:(.text+0x119): undefined reference to `mys ......
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