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xtreme toolkit pro——CXTPReportControl控件教程 - C/C++ - 清泛网 - 专注C/C++及内核技术
...kitPro.h> // Xtreme Toolkit Pro component library
2. 如果要使用静态连接的方式，还应该：
Add the following line to your application's .rc2 file. This will link in the toolkit resources so they are available to your application.
#include <XTToolkitPro.rc>
如果是动态连...
搭建高可用mongodb集群（四）—— 分片 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...前几篇文章。
任意登陆一个机器，比如登陆192.168.0.136，连接mongodb
#设置第一个分片副本集
/data/mongodbtest/mongodb-linux-x86_64-2.4.8/bin/mongo 127.0.0.1:22001
#使用admin数据库
use admin
#定义副本集配置
config = { _id:"shard1", members:[
...
Java 理论与实践: 线程池与工作队列 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...外，服务请求时所做的工作可能需要其它资源，例如 JDBC 连接、套接字或文件。这些也都是有限资源，有太多的并发请求也可能引起失效，例如不能分配 JDBC 连接。
并发错误
线程池和其它排队机制依靠使用 wait() 和 notify() 方...
当ORACLE 11G 遇到 JUNIPER 防火墙 - 数据库(内核) - 清泛网 - 专注C/C++及内核技术
...110.102的1521端口
配置
Tnsnames.ora 文件
使用PL/SQL 连接本机的IP地址 登陆查询一切正常。
由此判断 问题不是出在跨网段等问题，当使用端口映射的时候，本机就相当于一台防火墙了。 自此认为问题还是处在防火墙上...
SQL JOIN - WHERE clause vs. ON clause
...
@JamesHutchison It's tough to make reliable performance generalizations based on observed behaviors like this. What was true one day tends to be wrong the next, because this is an implementation detail rather than documented behavior. Database teams are always look...
How to check for an active Internet connection on iOS or macOS?
...y via closures
let reachability = Reachability()!
reachability.whenReachable = { reachability in
if reachability.connection == .wifi {
print("Reachable via WiFi")
} else {
print("Reachable via Cellular")
}
}
reachability.whenUnreachable = { _ in
print("Not reachabl...
How to iterate through a DataTable
I need to iterate through a DataTable . I have an column there named ImagePath .
4 Answers
...
Easiest way to detect Internet connection on iOS?
...through HTTPUrlConnection instantly fail if there is no connection available. This seems like completely sane behavior, and I was surprised to find NSURLConnection in iOS did not emulate it.
...
iPhone App 开发第一步：从零到真机调试HelloWorld - 更多技术 - 清泛网 - ...
...5.0系统），并点VMware右下角的，USB图标，确定和主机断开连接（就是和Win7断开，和虚拟机连接），之后，运行一次XCode，因为是第一次插入此设备，XCode会启动Orgnizer，来识别你的iPhone，又因为是越狱机器，会提示该系统无法识...
How to use android emulator for testing bluetooth application?
...er settings of the virtual machine, Goto serialports -> Port 1 check Enable serial port select a port number
then select port mode as disconnected click ok. now, start virtual
machine. Under Devices -> USB Devices -> you can find your laptop
bluetooth listed. You can simply check t...