After MySQL 5.5 is installed, when MySQL 5.5 command line client is started, how can this problem be solved?

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At least solved my difficulties. Thank you very much.

1. Find the bin directory path under the MySQL installation directory.
2. Open cmd, enter the path to the bin directory, and enter mysql-u root-P. // (I am looking for the bin folder under MySQL Server 5.5) REPORTER note

Problem Analysis:
1. view the default execution parameters of MySQL command line client. Method: Start-> All Programs-> mysql-> MySQL server5.5-> mysql5.5 command line client, right-click Properties.

2. Check the target content. The content is long and copied as follows:

"G: \ Program Files \ mysql server 5.5 \ bin \ mysql.exe" "-- defaults-file = G: \ Program Files \ mysql server 5.5 \ My. ini"
"-Uroot" "-P"
 

3. Note: "-- defaults-file = G: \ Program
Files \ mysql server 5.5 \ My. ini ""-uroot ""-P "specifies the configuration file my. ini.

Here we will check the installation directory, that is, G: \ Program Files \ mysql server 5.5. None of the six INI files are my. ini.

4. Copy the my-small.ini file, rename it my. ini file, save.

5. Start MySQL
Command Line client to solve the problem.