我在SQL中有查询
SELECT COUNT(DISTINCT dbo.Polling_Stations.P_ID) AS [Male Stations]
FROM dbo.Agent INNER JOIN
dbo.Polling_Stations ON dbo.Agent.P_ID = dbo.Polling_Stations.P_ID
GROUP BY dbo.Polling_Stations.Gender
HAVING (dbo.Polling_Stations.Gender = N'Ma
我想在我的一条线路上实现套接字。我有一个名为
index.js
var express=require("express");
var app=express();
var http=require("http").Server(app);
var io=require("socket.io")(http);
// one of my route 'polling'
var polling=require('./polling_server.js');
app.use('/',polling);
我试图为Python中长期运行的任务生成轮询机制。要做到这一点,我使用一个并发的未来,并与.done()民意测验。该任务存在许多本身是阻塞的迭代,我将其包装在一个异步函数中。我无法访问阻塞函数的代码,因为我正在调用第三方软件。这是我当前方法的一个很小的例子:
import asyncio
import time
async def blocking_iteration():
time.sleep(1)
async def long_running():
for i in range(5):
print(f"sleeping {i}")
我使用来自express-generator nodejs模块()的express命令创建了一个简单的项目结构。
当我启动应用程序时,除了一个奇怪的轮询调用(每个请求都得到404 )之外,一切都很好:
Listening on port 3000
GET / 200 533.444 ms - 170
GET /stylesheets/style.css 200 4.643 ms - 111
GET /socket.io/?EIO=3&transport=polling&t=1439686799050-244 404 40.935 ms - 1235
GET /socket.io
我需要在IE上使用jsonp-polling,在Firefox上使用xhr-polling,所以我尝试这样定义客户端的传输类型:
if (/Firefox[\/\s](\d+\.\d+)/.test(navigator.userAgent)){ //test for Firefox/x.x or Firefox x.x (ignoring remaining digits);
var socket = io.connect(VG.NODE_SERVER_URL,{
transports:['xhr-pollin
我在我的WPF控件上实现了一个简单的DependencyProperty,以便在绑定中使用它。
public static readonly DependencyProperty PollingProperty = DependencyProperty.Register("Polling", typeof(Polling), typeof(ConverterView), new UIPropertyMetadata(null));
public Polling Polling
{
get { return (Polling)GetValue(PollingProper
我在phonegap上做了一个小应用程序,它可以在phonegap模拟器(phonegap桌面应用程序)上无缝工作。使用没有错误,但当我将其设置为.apk并安装它时,它不能很好地显示工作,并且我的安卓手机上丢失了一个动画。
如何在android手机上调试?
这是模拟器的服务器日志
starting app server...
listening on 192.168.8.103:3000
listening on 192.168.121.1:3000
listening on 192.168.184.1:3000
listening on 192.168.56.1:3000
starting
我想有一个线程,它轮询网络服务。然而,线程不工作...
xxx.xaml.cs:
public class Alpha:Page
{
// This method that will be called when the thread is started
public void polling()
{
while (true)
{
Thread.Sleep(1000);
//MessageBox.Show("poll
发生数据库错误
错误号: 1327
未声明的变量:导出
SELECT a.tokoh_id, a.tokoh_name, a.thumb, a.subtitle, c.total_polling
FROM td_tokoh AS a
LEFT OUTER JOIN td_user AS b ON a.user_id = b.user_id
LEFT OUTER JOIN td_polling AS c ON c.tokoh_id = a.tokoh_id
ORDER BY c.total_polling DESC
LIMIT export,10
Filename: /mainDat
如何修复此代码中的while循环,使其仅在age为18时工作,如果小于18,则打印错误消息,并使程序即使在错误的邮政编码之后也能继续运行?
下面是我的代码:
print "VOTER ELIGIBILITY AND POLLING STATION PROGRAM"
print
print
age= int(raw_input("Enter your age (Type ' 0 ' to exit program) :"))
while age != 18:
print "ineligible"
age= int(r
我的服务器上有以下代码
var socket = require( 'socket.io' );
var express = require('express');
var app = express();
var server = require('http').createServer(app);
var io = socket.listen( server );
var port = process.env.PORT || 3000;
server.listen(port, function () {
没有明显的原因,在Emacs中触发黏液会在小型缓冲区中产生这条消息:
轮询“/tmp/slme.5000 . 25 (中止与‘tmp粘液-中止-连接’) 730次
730倍还在增长。据推测,这意味着黏液在启动上有困难,但不,它运转良好。
下面是以粘液初始化开始的消息缓冲区:
../../quicklisp/dists/quicklisp/software/slime-20130217-cvs/contrib/slime-package-fu.el:flet' is an obsolete macro (as of 24.3); use eithercl-flet‘或cl-le
我试图创建一个循环,要求用户了解他们的年龄和邮政编码,一旦返回他们的投票站,它应该返回,并再次询问他们的年龄和邮政编码。到目前为止,我的代码只要求两个,返回站点,然后完成。
print("VOTER ELIGIBILITY AND POLLING STATION PROGRAM\n\n")
ageMinimum = 18
exitVal = 0
zipCode = 0
zipCodeTemp = 0
age = int(input("Enter your age (Type '0' to exit the program): "))
while
我有一个运行Apache FTPServer的服务器。FTP服务器运行良好,直到最近一些客户端的上传开始失败,并附加了此错误。我已经增加了MaxIdleTimeout,但是仍然遇到这个错误。有人知道是什么导致了这个错误吗?
16 Mar 22:19:30,792 WARN [pool-3-thread-10] [LoggingFilter->log()]:122 - EXCEPTION :
java.io.IOException: An existing connection was forcibly closed by the remote host
at sun.nio.ch
我已经在我的MAMP服务器上成功地实现了socket.io来构建一个聊天应用程序,当我将它推到生产服务器(数字海洋,laravel )时,我得到了一个错误:
我基于在forge中设置了守护进程,并遵循了基于的安装步骤
我的socket.js文件是:
var server = require('http').Server();
var io = require('socket.io')(server);
var Redis = require('ioredis');
var redis = new Redis();
redis.sub
****************
* 192.168.1.1
****************
ssh -q 192.168.1.1 ntpstat
synchronised to NTP server (192.168.204.1) at stratum 5
time correct to within 281 ms
polling server every 1024 s
****************
* 192.168.1.3
****************
ssh -q 192.168.1.3 ntpstat
synchronised to NTP server (192.168
我试图在循环时重新启动,但有问题。我尝试过用几种方式格式化代码,而空闲总是以">>>“返回
responses = {}
polling_active = True
while polling_active:
name = input("\nWhat is your name? ")
response = input("Which mountain would you like to climb someday? ")
responses[name] = response
repeat = inp