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database connect
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| //连接数据库示例(通过*sql.DB执行数据库操作，其内部维护了数据库连接池) | |
| func OpenDatabase(ipport, database, user, pwd string) (*sql.DB, error) { | |
| connStr := fmt.Sprintf("%s:%s@tcp(%s)/%s?charset=utf8mb4", user, pwd, ipport, database) | |
| return sql.Open("mysql", connStr) | |
| } |
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