首页 \ 问答 \ C不承认var - 我必须忽略一些简单的东西。(C doesn't recognize var - I must be overlooking something simple. [closed])

C不承认var - 我必须忽略一些简单的东西。(C doesn't recognize var - I must be overlooking something simple. [closed])

 从错误中我认为print（）中的代码没有看到for（）中的计数器.nb代码用于Propeller微控制器。 for（）过去没有问题。 非常感谢  
#include "simpletools.h"  // for print on my microcontroller platform
void main(void) {
    for(int x = 1; x <= 20; x++); {
        // *** error next line> error: 'x' undeclared (first use in this function)
        print("x = %d\n", x);
        high(14);
        pause(500);
        low(14);
        pause(500);
    }
}

From error I think code in print() is not seeing the counter in for().n.b. code is for Propeller microcontroller. for() worked without problems in past. Much thanks 
#include "simpletools.h"  // for print on my microcontroller platform
void main(void) {
    for(int x = 1; x <= 20; x++); {
        // *** error next line> error: 'x' undeclared (first use in this function)
        print("x = %d\n", x);
        high(14);
        pause(500);
        low(14);
        pause(500);
    }
}

原文：https://stackoverflow.com/questions/21170684

更新时间：2022-08-29 15:08

最满意答案

 你的innodb引擎可以有自己的单独文件夹，用于存储数据文件。 根据MySQL手册，InnoDB默认在MySQL数据目录中创建表空间文件，请参阅： http ： //dev.mysql.com/doc/refman/5.0/en/innodb-configuration.html 。  
 通常，您会将表拆分到不同的驱动器上以提高性能，因此您可能会将InnoDB表配置为放置在另一个驱动器或文件夹上。 如果你有，请检查以前的MySQL配置文件并检查以下行：innodb_data_home_dir = / ibdata  
 这将指示文件的位置。 我没有试过这个，但如果是这种情况，你应该能够将当前的配置指向旧的innodb位置。 如果这不起作用，我认为恢复将是你最好的选择。  
 祝你好运！ 

Your innodb engines can have their own seperate folder where they store their data files. According the MySQL manual InnoDB creates tablespace files in the MySQL data directory by default see: http://dev.mysql.com/doc/refman/5.0/en/innodb-configuration.html.  
Normally you would split you tables onto different drives to increase performance thus you might have a scenario where the InnoDB tables where configured to be placed on a another drive or folder. If you have it please check the previous MySQL configuration file and check for the following line: innodb_data_home_dir = /ibdata 
This will indicate where the files are located. I have not tried this but you should be able to point the current config to the old innodb location if this is the case. If that does not work I think restoring will be you best bet. 
Good luck!

C不承认var - 我必须忽略一些简单的东西。(C doesn't recognize var - I must be overlooking something simple. [closed])

最满意答案

相关问答

有什么数据库专业书籍介绍？[2022-05-19]

将MySQL升级到5.5或更高版本(Upgrade MySQL to 5.5 or above)[2022-07-13]

MYSql 5.5升级问题：所有表都没了(MYSql 5.5 Upgrade Issue: All tables gone)[2024-01-14]

MAMP：从5.5升级到5.7后无法启动MySQL(MAMP: Unable to start MySQL after upgrade from 5.5 to 5.7)[2024-01-06]

从mysql 5.5升级到mysql 5.6时，Grails quartz插件中断(Grails quartz plugin breaks on upgrade from mysql 5.5 to mysql 5.6)[2023-12-14]

大量INSERT语句锁定MySQL 5.5中其他表的插入(Large number of INSERT statements locking inserts on other tables in MySQL 5.5)[2022-04-11]

从MariaDB 5.3升级到5.5？(Upgrading from MariaDB 5.3 to 5.5?)[2023-06-30]

在MySQL 5.5中添加用户问题(Adding user issue in MySQL 5.5)[2023-11-25]

从mariadb 5.5升级/更新到10(Upgrade/Update from mariadb 5.5 to 10)[2022-11-03]

PHP 5.5> PHP 5.6升级导致MySQL问题？(PHP 5.5 > PHP 5.6 Upgrade Causing MySQL Issues?)[2022-05-17]

相关文章

最新问答