大约有 13,000 项符合查询结果(耗时:0.0209秒) [XML]
Extension · App Inventor 2 中文网
...监听服务端返回的数据,再通过事件把结果切回主线程抛给积木层。
原作者与历史维护信息保留如下:
Properties
ConnectionState
返回当前连接状态。
返回 true 表示当前 Socket 已建立连接;
返回 ...
C++实现一款简单完整的聊天室服务器+客户端 - C/C++ - 清泛网 - 专注C/C++及内核技术
...控制台读取一行数据
gets(buf);
printf(">");
//发送给服务器
if(send(sock,buf,strlen(buf),0)==SOCKET_ERROR){
printf("发送数据失败!");
exit(-1);
}
}
//清理套接字占用的资源
WSACleanup();
return 0;
}
DWORD WINAPI ReceiveThreadProc(...
REDHAT 6.4 X64下ORACLE 11GR2静默安装 - 数据库(内核) - 清泛网 - 专注C/C++及内核技术
...认 SELINUX 和IPTABLES关闭
生产环境中防火墙功能就应该交给专门的硬件防火墙去解决。系统的功能越单一越好。
#vi /etc/selinux/config
确认里面的SELINUX字段的值是disabled,如果不是则改为disabled。
#service iptables stop
4、软件包...
App Inventor 2 云数据库配置教程 - Firebase/云数据库1/自建后台 · App Inventor 2 中文网
...组件。本文将全面介绍App Inventor 2提供的云存储方案,并给出详细的配置步骤和实践代码。
一、云存储方案对比
App Inventor 2内置了多种云端数据存储组件,每种方案各有适用场景:
特性
云数...
Win32汇编--使用MASM - C/C++ - 清泛网 - 专注C/C++及内核技术
...时候指定初始化值的,因为local伪指令只是简单地把空间给留出来,那么开始使用时它里面是什么值呢?和全局变量不一样,局部变量的初始值是随机的,是其他子程序执行后在堆栈里留下的垃圾,所以,对局部变量的值一定要...
Defining an array of anonymous objects in CoffeeScript
...
island205island205
1,6821616 silver badges2525 bronze badges
6
...
Java HashMap performance optimization / alternative
...et = very very bad. However if I turn the two arrays into a number in base 52 I am guaranteed to get a unique hash code for every object:
public int hashCode() {
// assume that both a and b are sorted
return a[0] + powerOf52(a[1], 1) + powerOf52(b[0], 2) + powerOf52(b[1], 3) +...
How many double numbers are there between 0.0 and 1.0?
...
Java doubles are in IEEE-754 format, therefore they have a 52-bit fraction; between any two adjacent powers of two (inclusive of one and exclusive of the next one), there will therefore be 2 to the 52th power different doubles (i.e., 4503599627370496 of them). For example, that's th...
vs2010编译boost若干问题解决 - 开源 & Github - 清泛网 - 专注C/C++及内核技术
...ttp: www.boost.org users download 上下载boost安装包,我下的是1.52.0版。按照说明,直接运行bootstr...首先说下环境,win7,vs2010。
先在http://www.boost.org/users/download/上下载boost安装包,我下的是1.52.0版。
按照说明,直接运行“bootstrap.bat...
biggest integer that can be stored in a double
...in IEEE 64-bit doubles without losing precision. An IEEE 64-bit double has 52 bits of mantissa, so I think it's 253:
253 + 1 cannot be stored, because the 1 at the start and the 1 at the end have too many zeros in between.
Anything less than 253 can be stored, with 52 bits explicitly stored in th...
