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正确重置MySQL密码 - 爬虫/数据库 - 清泛IT社区，为创新赋能！
...止MySQL服务，然后使用skip-grant-tables参数启动它：shell> /etc/init.d/mysql stopshell> mysqld_safe --skip-grant-tables &此时无需授权就可以进入到MySQL命令行，使用SQL重置MySQL密码：UPDATE mysql.user SET Password=PASSWORD('...') WHERE User='...' AND Host= '...
CentOS+Nginx+PHP+MySQL详细配置(图解) - PHP - 清泛IT论坛，有思想、有深度
... 123456 //设置MySQL密码
#cp support-files/my-medium.cnf /etc/my.cnf
#echo "/usr/local/mysql/bin/mysqld_safe &" >>/etc/rc.local
二、安装PCRE
PCRE是perl所用到的正则表达式，目的是让所装的软件支...
c++ boost::multi_index composite keys efficiency - c++1y / stl - 清泛IT社区，为创新赋能！
...performed by the first key, then the second key if the first one is equal, etc". Does this mean that the structure is stored such that a lookup for a specific 2-part composite key will take O(n=1) time, i.e. is the container sorted such that there is a pointer directly to each item, or does the...
mysql blob大小配置介绍 - 爬虫/数据库 - 清泛IT社区，为创新赋能！
...5K
MediumBlob 最大 16M
LongBlob 最大 4G
linux修改etc/my.cnf
[mysqld]
max_allowed_packet = 16M //不同于[mysqldump]下的max_allowed_packet
aaa
LINUX下用PHPIZE安装PHP GD扩展 - PHP - 清泛IT论坛，有思想、有深度
...ir --with-jpeg-dir --with-gd
sudo make
make install
sudo vi /app/php5/etc/php.ini //修改PHP配置文件
extension=gd.so //添加这一行，重启PHP服务
---------------------------------------
安装gd，加上参数重新编译php也可以解决。
http://bbs...
BLE（五）移动端工具 - 创客硬件开发 - 清泛IT社区，为创新赋能！
...上的蓝牙配置文件bt_stack.conf来查看路径
bt_stack.conf位于/etc/bluetooth/路径下，HCI log路径通过BtSnoopFileName=/sdcard/btsnoop_hci.log`来进行设置的
另外如果没有bt_stack.conf文件，设备也会在默认路径下生成日志：/data/misc/bluetooth/logs/btsnoop_hc...
mongodb, replicates and error: { “$err” : “not master and slaveOk=f...
出现这个错误的原因是在从库上执行命令导致，默认情况下只有主库可以执行命令。
当然可以通过设置使得从库也能执行命令，具体参见：
http://stackoverflow.com/questions/8990158/mongodb-replicates-and-error-err-not-master-and-slaveok-false-code
【可动态编辑表格】App Inventor 2 Dynamic Editable HTML Table - App应用...
... exception of the header row) to create new rows, edit any row, and delete any row, whilst returning the saved/updated data to your app, you therefore have a full CRUD.
[color=rgba(0, 0, 0, 0.54)Features:
The html is initially designed to display data you might receive from a database...
MIT官方已升级至2.70版本，中文网待测试并升级相关特性 - App Inventor 2 ...
...g relative path files (@arjuninv)Add TextChange event, MoveCursor methods, and HintColor property to TextBox and related components (@gordonlu310)Show translated help in property help widgetsAdd CircularProgress and LinearProgress components from Kodular (@barreeeiroo)Add Theme and Toolkit propertie...
Targeting S+ (version 31 and above) requires that one of FLAG_IMMUTABL...
运行故障：edu.mit.appinventor aicompanion3: Targeting S+ (version 31 and above) requires that one of FLAG_IMMUTABLE or FLAG_MUTABLE be specified when creating a PendingIntent. Strongly consider using FLAG IMMUTABLE, only use FLAG_MUTABLE if some functionality depends on the PendingIntent being ...