...法大家肯定都知道，才发现update和delete居然支持inner join的update方式，这个在表间关联来...Update Update XXX set XXX where 这种写法大家肯定都知道，才发现update和delete居然支持inner join的update方式，这个在表间关联来做更新和删除操作...

Linux iptables防火墙开放mysql、apache的端口vi etc sysconfig iptables 修改配置，添加两条tcp端口允许的记录：[root@iZ23rlmiwviZ ~] cat etc sysconfig iptables sample configuration for iptables service vi /etc/sysconfig/iptables 修改配置，添加两条tcp端口允许...

【解决】标准库std::min/std::max 与 Windows.h中的宏 min/max 冲突问题在包含了Windows h的 C++ 源代码中使用std::min std::max会出现错误。int main(){ int x = std::max(0, 1); int y = std::min(-1, 0);}error C2589: & 在包含了 Windows.h 的 C++ 源代码中使用 st...

net use命令使用方法net use命令用于建立新的网络连接1. 连接局域网中共享的目录：net use 0.0.0.0 dir "your password" User:username PERSISTENT...net use命令用于建立新的网络连接 1. 连接局域网中共享的目录： net use \\0.0.0.0\dir "your passwor...

与迭代器失效相关的错误，例如:0x008D1127 处有未经处理的异常(在 prog34.exe 中): 0xC0000005: 读取位置 0x010AC000 时发生访问冲突。错误代码：#include <iostream>#include <vector>using std::vector;using std::cout;using std::endl; 迭代器失效举例-避免存储...

Python中的X[:,0]和X[:,1]X[:,0]是numpy中数组的一种写法，表示对一个二维数组，取该二维数组第一维中的所有数据，第二维中取第0个数据，直观来说，X[:,0]就是取所有 X[:,0]是numpy中数组的一种写法，表示对一个二维数组，取该二维...

JQuery中toggle被淘汰后的替代方法（jquery toggle 把自己隐藏了）在最新的JQuery的程序库中jquery-2 2 3 js中已经有好几个函数被替换到了。应该说版本过1 8或1 9时就淘汰了。如： live() 1 9以上被淘汰。 在最新的JQuery的程序库中jquery-2.2....

...ch and useable as something of this form can be. Dozens of developers from all over the world have contributed fixes, improvements and suggestions over the 4 years that the grid has been growing, and there is still no end in sight. Most of the fixes have been sent in by readers so I'm trusting that ...

...ch and useable as something of this form can be. Dozens of developers from all over the world have contributed fixes, improvements and suggestions over the 4 years that the grid has been growing, and there is still no end in sight. Most of the fixes have been sent in by readers so I'm trusting that ...

...ch and useable as something of this form can be. Dozens of developers from all over the world have contributed fixes, improvements and suggestions over the 4 years that the grid has been growing, and there is still no end in sight. Most of the fixes have been sent in by readers so I'm trusting that ...