今天在那做實驗倒騰mysql資料庫，後來發現服務無法啟動，檢視日誌報錯如下：

2015-01-07 17:48:54 9136 [ERROR] InnoDB: .\ibdata1 can't be opened in read-write mode
2015-01-07 17:48:54 9136 [ERROR] InnoDB: The system tablespace must be writable!
2015-01-07 17:48:54 9136 [ERROR] Plugin 'InnoDB' init function returned error.
2015-01-07 17:48:54 9136 [ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed.
2015-01-07 17:48:54 9136 [ERROR] Unknown/unsupported storage engine: InnoDB
2015-01-07 17:48:54 9136 [ERROR] Aborting

解決方法：

1、開啟工作管理員終止mysqld程序；

2、開啟mysql安裝目錄的data資料夾，刪除以下2個檔案：

ib_logfile0和ib_logfile1

3、重新啟動mysql

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Dylan    Presents.