我知道这已经在这里讨论了,但是我没有找到我想要的问题,即:我有一个C++应用程序,它使用了很多(超过20-30个)DLL.我已经在我的Visual Studio 2010项目中定义了.exe将被复制到ProjectDir(这样一切都很整洁)但是当.exe单独站在ProjectDir中时它无法访问存储在bin中的DLL. //任何文件夹以及许多其他文件.
我可以以某种方式指向DLL文件夹,以便应用程序知道它们的位置吗？(并且<myapp>.exe.local文件夹在我的Windows 7中不起作用)
我试图传递一系列新闻在屏幕上显示但我在某种程度上在浏览器的结果中得到空数组
路线/ rss.js
...
var news = [];
...
var this_news = {
'title': item.title,
'description': item.description
}
news.push(this_news);
...
res.render('rss', {
title: 'Node.js based RSS reader',
newsi: JSON.stringify(news)
});
意见/ rss.jade
extends layout
block content
h1= title
p Welcome to #{title}
p Sure why not
script(type='text/javascript').
var inews = !{newsi};
编辑
好的,我得出结论,问题在于我的'非回调逻辑'
这是我的代码:
var FeedParser = require(__dirname + '/../node_modules/feedparser')
, request = require(__dirname + '/../node_modules/request');
exports.news = function(req, res){
var news = [];
request('http://feeds.feedburner.com/niebezpiecznik/')
.pipe(new FeedParser())
.on('error', function(error) { …我试图socket.io在不同的node.js模块中共享套接字对象,虽然我失败并获得空对象
Cannot call method 'on' of undefined
我的代码:
app.js
var express = require('express')
, app = express();
var server = require('http').createServer(app)
, io = require('socket.io').listen(server)
var routes = require('./routes')
, path = require('path')
, rss = require('./routes/rss')
// ...
exports.io = io;
路线/ rss.js
io = require(__dirname + '/../app');
console.log(io);
io.sockets.on('connection', function(
console.log("Connection on socket.io on socket");
// .. do stuff
});
这是我得到的输出:
$ node app.js
info - socket.io started
{}
/home/XXX/programming/nodejs/node-express-aws/routes/rss.js:10
io.sockets.on('connection', function(socket){
^
TypeError: Cannot call …我想List用我的自定义类包装类.至于现在我有这样的事情;
public class PriorityListOfNodes
{
private List<Node> list_;
private IComparer<Node> sorter_;
public List<Node> List_ {
get {return list_;}
set {list_ = value;}
}
public PriorityListOfNodes ()
{
sorter_ = new NodeSorter_fValueDescending ();
}
public Node PopFromEnd ()
{
Node temp = new Node (list_ [list_.Count - 1]);
list_.RemoveAt (list_.Count - 1);
return temp;
}
public Node PeekFromEnd ()
{
return list_ [list_.Count - 1];
}
public void Add (ref Node toAdd)
{
Debug.Log (toAdd);
list_.Add (toAdd);
list_.Sort (sorter_); …我正在尝试使用cluster库启动sails.js应用程序以允许它生成更多进程以使用我的机器的所有核心,但不知何故,与express一起使用的方法在这里失败.
var cluster = require('cluster'),
numCPUs = require('os').cpus().length;
// create the server
if (cluster.isMaster) {
for (var i = 0; i < numCPUs; i++) {
cluster.fork();
}
cluster.on('exit', function(worker, code, signal) {
console.log('worker %d died (%s). restarting...', worker.process.pid, signal || code);
cluster.fork();
});
} else {
// Start sails and pass it command line arguments
require('sails').lift(require('optimist').argv);
console.log("Sails forked");
}
之后我通常通过以下方式运行它:
$ sails lift
但是当我为这个性能测试运行apache bench时,我得到了相同的结果.有帮助吗？我错过了什么吗？
编辑
甚至当我把console.log在cluster.fork如果部分然后我没有得到的输出.
我有以下字符串,我想解析为JSON:
{
"STATUS": [
{
"STATUS": "S",
"When": 1394044643,
"Code": 17,
"Msg": "GPU0",
"Description": "cgminer 3.7.3"
}
],
"GPU": [
{
"GPU": 0,
"Enabled": "Y",
"Status": "Alive",
"Temperature": 70,
"Fan Speed": 3089,
"Fan Percent": 70,
"GPU Clock": 1180,
"Memory Clock": 1500,
"GPU Voltage": 1.206,
"GPU Activity": 99,
"Powertune": 20,
"MHS av": 0.4999,
"MHS 5s": 0.5009,
"Accepted": 4335,
"Rejected": 7,
"Hardware Errors": 0,
"Utility": 27.8007,
"Intensity": "0",
"Last Share Pool": 0,
"Last Share Time": 1394044643,
"Total MH": 4676.7258,
"Diff1 Work": 69436, …我想创建一个位置,列表程序选项,boost_program_options不允许命名程序选项(如--files).
我有以下代码片段:
#include <boost/program_options.hpp>
#include <iostream>
#include <string>
#include <vector>
namespace po = boost::program_options;
int main(int argc, const char* argv[]) {
po::options_description desc("Allowed options");
desc.add_options()("help", "produce help message")
( "files", po::value<std::vector<std::string>>()->required(), "list of files");
po::positional_options_description pos;
pos.add("files", -1);
po::variables_map vm;
try {
po::store(po::command_line_parser(argc, argv).options(desc).positional(pos).run(), vm);
po::notify(vm);
} catch(const po::error& e) {
std::cerr << "Couldn't parse command line arguments properly:\n";
std::cerr << e.what() << '\n' << '\n';
std::cerr << desc << '\n';
return 1;
}
if(vm.count("help") || …代码段如下:
package main
import (
"fmt"
"reflect"
)
func main() {
a := (*interface{})(nil)
fmt.Println(reflect.TypeOf(a), reflect.ValueOf(a))
var b interface{} = (*interface{})(nil)
fmt.Println(reflect.TypeOf(b), reflect.ValueOf(b))
fmt.Println(a == nil, b == nil)
}
输出如下:
*interface {} <nil>
*interface {} <nil>
true false
所以var interface{}不同:=,为什么？