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全部话题 - 话题: handlers
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z*******3
发帖数: 13709
1
来自主题: Java版 - 再论abstract class
之前说过我对abstract class的看法,倒是引来不少非议
尤其是有些人居然举出了例子,好,我们就从这个例子开始
有人说在这种情况下要使用abstract class
比如一个animal,有walk和sing方法
那么代码就是
public abstract class Animal{
public void walk(){System.out.println("walk")};
public abstract void sing();
}
然后对于具体的实现类,比如Cat,有如下实现
public class Cat extends Animal{
public void sing(){
System.out.println("cat sing");
}
}
这样一个类,好处就是“便于扩展”等等
OK,那么我们就从这个例子出发,说说为什么在j2ee环境中,我们不这么做
然后说说会怎么做
首先,在j2ee的环境中,关于animal这种实体
我们会在各个层面建立entity
比如在db层面建立一个表,叫做animal,然后有一个cat记录
然后通过orm,建立起一个dto之类的玩... 阅读全帖
z*******3
发帖数: 13709
2
来自主题: Java版 - 再论abstract class
之前说过我对abstract class的看法,倒是引来不少非议
尤其是有些人居然举出了例子,好,我们就从这个例子开始
有人说在这种情况下要使用abstract class
比如一个animal,有walk和sing方法
那么代码就是
public abstract class Animal{
public void walk(){System.out.println("walk")};
public abstract void sing();
}
然后对于具体的实现类,比如Cat,有如下实现
public class Cat extends Animal{
public void sing(){
System.out.println("cat sing");
}
}
这样一个类,好处就是“便于扩展”等等
OK,那么我们就从这个例子出发,说说为什么在j2ee环境中,我们不这么做
然后说说会怎么做
首先,在j2ee的环境中,关于animal这种实体
我们会在各个层面建立entity
比如在db层面建立一个表,叫做animal,然后有一个cat记录
然后通过orm,建立起一个dto之类的玩... 阅读全帖
f**y
发帖数: 138
3
来自主题: Programming版 - GCJ2009
Believe it or not signal handling is not that easy. If all I want are
some web applications, certainly I don't need to worry about signal
handling. I have seen lots of applications with broken signal
handling particularly in C/C++ where a common mistake is to call
syslog in signal handler.
A way I could implement the signal handling in my jni is to install
a simple handler. All the handler doing upon receiving signals is to
set global flags. The java code then calls the jni repeatedly to
poll th
t****t
发帖数: 6806
4
来自主题: Programming版 - A C++ exception question
fopen() is from libc, it doesn't throw any exception. if open fails, it
returns NULL.
on the other hand, if an exception is thrown (whatever reason) and is not
catched by catch block, terminate() will be called, which will in turn call
terminate handler set by set_terminate(). the default handler will call
abort().
if an exception is thrown and is not listed in exception-specification,
unexpected() will be called, which will in turn call unexpected handler set
by set_unexpected(). the default ha
t****t
发帖数: 6806
5
void (*A)(int): declare A as [pointer to function that takes int as
parameter, with no return]
void (*A(....))(int): declare A as a function that returns [pointer to
function that takes int as parameter, with no return], taking whatever
parameter (...)
replace "..." with "int signo, void (*func)(int)", you get what it means:
declare signal as a function, that returns [pointer to function that takes
int as parameter, with no return], and takes two parameter: first is int,
second is [pointer to fu... 阅读全帖
f*****w
发帖数: 2602
6
看了文档和尝试了一些简单例子之后有些基本了解了。目前的理解是每个功能的模块都
应该是一个verticle,但是具体操作的building block应该都是Handler。 但是基于这
个理解又有些疑问
第一个问题是 文档里面说而一个module 里面实际上可以有多个verticle,并且互相
之间可以通信。但是文档里面对于如何同时启动多个verticle或者如何对于verticle寻
址通信只字未提。 是还有什么其他文档我没有看到吗 还是说verticle和handler是两
个完全可以互相取代的概念,所有对handler可以做的操作同样也可以对verticle操作?
第二个问题是 我不明白系统什么时候做并行操作。比如 我在同一个verticle里面监听
了10个端口,每个不同的端口是个不同的REST服务。这种情况下是不是意味着这10个服
务完全就没有可能被并行了 (因为每个verticle都是单线程的)。那这也就意味着对
于REST服务来讲,最优的做法应该是每个服务都运行自己独立的verticle ? 我这麽想
对吗
f*****w
发帖数: 2602
7
非常感谢这麽详细地解释了这些概念 我再消化一下 :-)
那第一个问题呢? 我对handler 和 verticle 之间的关系也很困惑。原因是因为我在
试图自己弄个toy example,里面主verticle会去deploy多个子verticle。 文档讲得很
模糊,我自己找到的API是 container.depolyVerticle() 但是这个函数take的
类型居然是handler! 这样让我不太明白我在根据需求设计自己的verticle/handler的
时候应该让他们遵从什么原则
s**y
发帖数: 151
8
来自主题: Programming版 - 关于在c++ member function里用signal( )
// A.hpp
class A
{
public:
A();
~A();
static void my_handler(int param);
private:
void handler(int param);
static A *pMe;
};
// A.cpp
static A::pMe = 0;
A::A()
{
pMe = this;
}
A::~A()
{
}
void A::my_handler(int param)
{
if (0 != pMe)
{
pMe = new A();
}
if (0 != pMe)
{
pMe->handler(param);
}
}
void A::handler(int param)
{
// handle the param here
}
//In C file:
#include
#include "A.hpp"
int main ()
{
signal(SIGINT, ... 阅读全帖
j*******e
发帖数: 674
9
来自主题: Unix版 - question about UNIX Signal
I install a signal handler for a process.
The handler will catch all the signals except 9 and 23, and do nothing but
"print", and so on.
I found out that that: When the process receive the same signal for a second
time, the handler will not function anymore. And default action for that
signal will take effect.
I can't find any book mention such problem.
Is this a bug in my program, or it is the way that signal works?
o***s
发帖数: 42149
10
在特朗普去年赢得美国大选之前,许多名人宣称如果他当选,他们将会移居海外。如今,特朗普已正式入主白宫,那些说要离开美国的人如今身在何处?
去年大选刚刚结束,几位宣称要移民国外的名人就改口说不走了。喜剧女明星韩德乐(Chelsea Handler)去年5月接受媒体采访时曾表示,已经在其他国家购买了房子,万一特朗普当选,她将会离开。然而,在选举结束后不久,她在推特上发文称决定不走了,“昨天,我的员工提醒我说,美国比任何时候都更需要像我这样的声音和平台;离开这个国家的决定取消。#继续战斗”。
美国保守派政治评论网站townhall.com跟踪了20多位曾誓言要移民的名人,结果发现他们几乎都还呆在美国,比如要去墨西哥的乔治·洛佩兹(GeorgeLopez)、打算去南非的塞缪尔·L·杰克逊(Samuel L. Jackson)、计划移居澳大利亚或者加拿大的芭芭拉·史翠珊(Barbra Streisand)等,他们似乎眼下都还没有真正的动作。
这些当初誓言旦旦要离开美国的人,或者像Handler那样,要留下来继续战斗;或者因为种种原因无法真正执行,有的干脆就说当初的只是一句戏言。
尽管如此,还是有迹... 阅读全帖
s********n
发帖数: 26222
11
veterans today issues a scathing report on this propagandist ploy. Good
report. Another sign veterans aren't buying the ploy of deception.
“Bin Laden” Heroes Probably Murderered to Keep Them Quiet. Some Possibly
Killed in Abbottabad Helicopter Crash Months Before
Today 31 NATO troops, 20 of them Navy Seals from the Osama bin Laden
operation died in what is reported as a helicopter crash in Afghanistan.
The chances of this story being true is almost nil. The chances of this
being a staged coveru... 阅读全帖
s********n
发帖数: 26222
12
veterans today issues a scathing report on this propagandist ploy. Good
report. Another sign veterans aren't buying the ploy of deception.
“Bin Laden” Heroes Probably Murderered to Keep Them Quiet. Some Possibly
Killed in Abbottabad Helicopter Crash Months Before
Today 31 NATO troops, 20 of them Navy Seals from the Osama bin Laden
operation died in what is reported as a helicopter crash in Afghanistan.
The chances of this story being true is almost nil. The chances of this
being a staged coveru... 阅读全帖
g**1
发帖数: 10330
13
来自主题: Military版 - Trump 是个屁眼 butt holeZT
She's such a cheeky girl! Chelsea Handler calls Donald Trump a 'butt hole'
in message scrawled over her bottom in naked image
Read more: http://www.dailymail.co.uk/tvshowbiz/article-3523795/Chelsea-Handler-calls-Donald-Trump-butt-hole-message-scrawled-bottom-naked-image.html#ixzz44uzdbbZd
Follow us: @MailOnline on Twitter | DailyMail on Facebook
x****o
发帖数: 21566
14
来自主题: Military版 - Food safety和Food security
Even though the two terms intuitively sound as if they should mean the same,
in fact, "Food security" suggests the adequacy of food to society, the
equitable distribution, confirmed supply, fair access, sustained sources,
etc. A "secure supply" of food. To a lesser degree, food security does
acknowledge the importance of food safety as well.
"Food safety" is concerned with safe sources of all foods, freedom from
avoidable chemical and microbial contamination, continuing the appropriate '
cold-... 阅读全帖
b********n
发帖数: 38600
15
来自主题: Military版 - 床铺受到梅毒的影响 (转载)
【 以下文字转载自 USANews 讨论区 】
发信人: beijingren (to thine own self be true), 信区: USANews
标 题: 床铺受到梅毒的影响
发信站: BBS 未名空间站 (Mon Apr 17 10:02:32 2017, 美东)
Chelsea Handler: Trump Suffers from Effects of Syphilis
http://www.newsbusters.org/blogs/culture/karen-townsend/2017/04/16/chelsea-handler-trump-suffers-effects-syphilis
l**********g
发帖数: 6198
16
来自主题: RuralChina版 - 撞元妹,撞元妹,紧急求助哇
hitdollar没在
你马甲太多了,也不知道是在上哪一个。。。。
"guess the number"我有个地方卡住了
need help~~~
别的都可以,就是那个还有几次可以猜,插不进。。。。
单独这个函数我会写,不过不知道在哪里插,老是报错啊
一个多小时就要交了,实在想不出来
如果你在1点前看到了,贴出来给我参考下?~~~ 哈哈(我明早起来删掉,不会占用版
面的)
帖子里回复,领导在旁边,不敢一直上账号lol
我的code如下:
import simplegui
import random
import math
# initialize global variables used in your code
secret_number=0
guess_number=0
num_range=100
# define event handlers for control pane
def init():


global guess_number
print "Guess was",guess_number



# button that c... 阅读全帖
h*******r
发帖数: 928
17
来自主题: RuralChina版 - 撞元妹,撞元妹,紧急求助哇
我先把我的贴在这里,你运行看看结果,有什么启发,我再看看你的问题。
# template for "Guess the number" mini-project
# input will come from buttons and an input field
# all output for the game will be printed in the console
import simplegui
import random
import math
# initialize global variables used in your code
num_range = 100
remaining_guess = 7
secret_number = 0
user_input = 0
def init():
global secret_number, num_range, remaining_guess
secret_number = random.randrange(0, num_range)
if num_range == 100:
rem... 阅读全帖
l****z
发帖数: 29846
18
High court strikes down raisin program as unconstitutional
WASHINGTON (AP) — The Supreme Court ruled Monday that a 66-year-old program
that lets the government take raisins away from farmers to help reduce
supply and boost market prices is unconstitutional.
In an 8-1 ruling, the justices said forcing raisin growers to give up part
of their annual crop without full payment is an illegal confiscation of
private property.
The court sided with California farmers Marvin and Laura Horne, who claimed
t... 阅读全帖
l****z
发帖数: 29846
19
High court strikes down raisin program as unconstitutional
WASHINGTON (AP) — The Supreme Court ruled Monday that a 66-year-old program
that lets the government take raisins away from farmers to help reduce
supply and boost market prices is unconstitutional.
In an 8-1 ruling, the justices said forcing raisin growers to give up part
of their annual crop without full payment is an illegal confiscation of
private property.
The court sided with California farmers Marvin and Laura Horne, who claimed
t... 阅读全帖
H**U
发帖数: 1814
20
来自主题: USANews版 - Get that fxxking dog away from me
K9 handler says nasty encounter with Hillary led him to never vote for her
http://theamericanmirror.com/k9-handler-says-nasty-encounter-hillary-led-never-vote/
One of my Last details was for Hillary when she was Secretary of State. She
was in Turkey for whatever reason. I helped with sweeps of her DV Quarters
and staff vehicles.
Her words to me? “Get that Fucking dog away from me.”
Then she turns to her Security Detail and berates them up and down about why
that animal was in her quarters. For t... 阅读全帖
t*********e
发帖数: 568
21
来自主题: USANews版 - 看来希拉里退出不可避免了
http://blog.sina.com.cn/s/blog_5e5c68960102xlzl.html
The situation has reached the point where the handlers of Hillary Clinton
contacted the WDS to say they were planning to end Hillary’s bid for
President. They are either going to use her poor health as a reason for her
to quit or else they will have her assassinated in a way that makes it look
Donald Trump was involved, the Clinton handlers say. Recent US corporate
media headlines indicate it is the heath option they are going to choose.
情况已经到... 阅读全帖
b********n
发帖数: 38600
f**u
发帖数: 559
23
【 以下文字转载自 FLY 讨论区 】
发信人: fufu (弗弗), 信区: FLY
标 题: [案例参考]一哥们托运行李相机被盗的索赔过程
发信站: BBS 未名空间站 (Sat May 12 02:15:28 2007)
网上看到的,这哥们相机放行李里被偷了,郁闷中坚持不懈,发现他相机在ebay上被人
销赃,结果获取证据,把这小偷给抓到了,还解雇逮捕起诉了。
这里面有N多和TSA, Delta之间的真实通讯记录,我还没仔细看完,但是觉得有参考价
值。
http://consumerist.com/consumer/complaints/man-tracks-down-and-gets-prosecuted-baggage-handler-who-stole-his-camera-delta-still-wont-refund-234548.php
Man Tracks Down And Gets Prosecuted Baggage Handler Who Stole His Camera,
Delta Still Won't Refund
Inside, find a tre
s*******e
发帖数: 27
24
来自主题: JobHunting版 - 问几个multithreading的问题
Thank you for pointing it out.
Before I made the my previous post, I actually looked up in the Advenced
Programming ... book ( i am self learning Linux now) and I looked at it
again,
it says on page 402,
'If a function is reentrant with respect to multiple threads, we say that it
is thread safe. This doesn't tell us, however, whether the function is
reentrant with repsect to signal handlers, we say that a function that is
safe to be reentered from an asynchronous singal handler is async-signal
s
c***d
发帖数: 64
25
怎样让VC++程序获知外部事件?
VC++是面向事件的程序。事件驱动是其一大特点。也使程序运行高效率。
例子1: Mouse click, Windows已经有BN_CLICKED or BN_DOUBLECLICKED 事件产生(
MFC ClassWizard)。
例子2: 对串行通讯,通过添加”Microsoft Communication Control, version 6.0
” (电话机icon),就会有OnComm()。
对USB通讯来说,哪位知道怎样构造event handler呢?
有人提议开一个独立的线程不停地读,在一定程度上可以解决接收数据问题,但本质上
是查询方式而非事件驱动。
上述事件能否用user-defined事件来处理,又如何构造event handler呢?有哪位能给
说说? 借人气贴请教。
n*****0
发帖数: 133
26
来自主题: JobHunting版 - 问个今天被问道的OS问题。
应该是B吧
interrupt handler是在cpu当前的process A的instruction执行完之后才执行的,这时
process A已经算执行完了。
在interrupt处理完之后,就直接轮到process B执行。
如果是exception的话,就不一样了。exception 的handler是在cpu当前instruction执
行完之前执行的。
j********x
发帖数: 2330
27
来自主题: JobHunting版 - amazon 2 面
load balance要考虑很多具体的实现模式
我瞎说:
如果有一个central的dispatching handler,可以动态调整每种query往机器上的分布
同时query cache的存储空间和替换策略也可以向需求量大的商品类别倾斜
如果没有central的handler,那就p2p,那更好忽悠了。动态调整每种商品数据的
replica,如果query很多就放更多的replica在其他的peer上
d********w
发帖数: 363
28
来自主题: JobHunting版 - c模拟c++的继承和多态
看到一篇lighttpd源码剖析,http://www.cnblogs.com/kernel_hcy/archive/2009/10/23/1588873.html,发现它的数据结构设计的挺精妙的,比如在定义array时候
通过DATA_UNSET宏,其他类型在定义中直接引用DATA_UNSET宏来模拟继承
通用数组中存放的数据可以是通用数组,这样可以形成多维的通用数组。
typedef struct {
 DATA_UNSET;
 array *value;
} data_array;
之前看其他开源的代码,有种技巧是使用函数指针和二维数组来实现多态,不过我记得
不大清了,请高人指点完整写法。
比如:
typedef struct {
int (*init)(events *ev);
const char *description;
int num;
} event__t;
int call_back1(events *ev);
int call_back2(events *ev);
int call... 阅读全帖
k**w
发帖数: 376
29
来自主题: JobHunting版 - unix 面试题,求答案
>>fork,exec ipc,how many types of ipc
after fork, does new process get file handles and locks
>>what's are spin lock? are they better than mutex?
how many spinlocks work on smp and up architecure?
>>what will happen /can u have printf/printk inside an interrupt handler?
>>what's the difference between wake_up() and wake_up_interruptible() apis
in the linux kernel
when should sude which one, how it should be decided?
>>what's the difference between sleeep_on() and interruptible_sleep_on()
>>what ... 阅读全帖
r*******m
发帖数: 457
30

。。
也来说所我的2轮T的电面吧:
都是coding,第二轮那个哥们好像扯多了点我的research.感觉它家题目都是自己
customize的,反正我没怎么碰到常见题。不过也不难就是了。
第一轮:
写Trie的2个method: insert, contains; 没什么特别的
就是结构的define和平时我们用 array[256] or list不太一样,它自己定义
class Node {
public:
std::map children;
};
void insert(std::string s, Node* n)
bool contains(std::string s, Node* n)
第二轮:
题目很长,大致意思是,response存在不同的机器里,然后来一个request的stream,
通过call一个getHandlerID map到相应的机器取出response然后再一起输出,还是要按
request的顺序输出。。。。不知道讲清楚没有。反正就是定义两个map int>> 一个对应request, 一个对... 阅读全帖
j******s
发帖数: 48
31
来自主题: JobHunting版 - 最近面的两道题,求解答
好吧,自己回答一下思路,虚心求各路大神拍,给点意见
第一题应该是建立一个binary tree,然后recursive求每一个节点的左右子树的最高高
度,他们和就是在这一位上的largest distance,可以online做,但是需要在每个节点
保存左右子树的高度并且动态更新。
o(n) time + O(n) space
第二题,
Assumption:
1 Log file is typically very small, operations are append, delete and read.
2 Cluster is built on Hadoop, which has a chunk size of 64MB, roughly, and
it might be too large and inefficient if we use this chunk size for the log
file.
3 Log information is typically not very important, less effort is needed for
redundan... 阅读全帖
n*******e
发帖数: 37
32
来自主题: JobHunting版 - 几个OOP的面试题
感谢回复!! 是的, 应该是OOD才对.
我那时的回答中, 只有house controller和devices class. 加上house和room class就
完整很多.
另外, 在答题时遇到以下两大难题:
1. controller提供的doDevices() method, 可以对各种device subclass做各种task.
有一个难题是, 不同subclass的device有非常不同的task. 例如: tv有set volume,
washing machie有wash, telephone有make call ... 这些task都需要subclass有自己
的specific method.
这样的话, 要如何用controller提供的doDevices()对所有device处理各种task呢?
2. scheduleDevices()应该要setup一个event handler, 当timer event expired时,
就trigger这个event handler? 但具体来说, 如何用C++实现呢? 感觉这种功能应该会
很常用, 但网路上查不到... 阅读全帖
f**********t
发帖数: 1001
33
来自主题: JobHunting版 - 一道dropbox面试题
自己先写点抛砖引玉好了,还没写完
#!/usr/bin/python
# -*- coding: utf-8 -*-
import os
import sys
from collections import defaultdict
from os.path import join, getsize
# Write a basic file system and implement the commands ls, pwd, mkdir ,
# create, rm, cd, cat, mv.
class TreeNode:
def __init__(self, name, isDir):
self.name = name
self.children = defaultdict()
self.isDir = isDir
class FileSystem(object):
def __init__(self):
self.root = TreeNode("", True)
self.cur = ... 阅读全帖
N********X
发帖数: 69
34
来自主题: JobHunting版 - F面经
我工作5-6年了,这次面的是system engineer (好像是这个名字), 让朋友内推的,直
接奔着这个职位去的,是比较底层,平时工作也跟linux kernel打点交道,正好这个组
需要有人帮忙写个driver什么的,就面我这个问题了。版上如果是general hire的话,
应该不用担心这样的问题。
udp driver的话,关键点是两点,一是register interrupt line associated with an
interrupt handler,因为MAC在收到packet的时候会产生一个interrupt。packet的处
理在interrupt handler里面。还有一点是linked list,packet的存储一般是用linked
list。
还要注意就是linux kernel space和user space的概念以及locking mechanism。
楼上提到DMA也是对的,network driver都是用DMA的,不然处理起来会太慢。这轮比较
恶心的是,开始说的implement i2c的数据读取,这种主从方式的communicatio... 阅读全帖
j**********r
发帖数: 3798
35
来自主题: JobHunting版 - 问一道system design的题
DB is for storage/backup purpose. The messages should be kept in a priority
queue in memory based on schedule, at least for those that will be sent in
next N
minutes, and you can load up every N minutes.
A master handler can distribute the messages to a worker cluster, if the
messages are big, message id can be passed instead, and worker cluster can
call back DB to get the message payload. Using async requests, a single node
can easily send 10s of thousands of messages per second, usually enough... 阅读全帖
j**********r
发帖数: 3798
36
来自主题: JobHunting版 - 问一道system design的题
DB is for storage/backup purpose. The messages should be kept in a priority
queue in memory based on schedule, at least for those that will be sent in
next N
minutes, and you can load up every N minutes.
A master handler can distribute the messages to a worker cluster, if the
messages are big, message id can be passed instead, and worker cluster can
call back DB to get the message payload. Using async requests, a single node
can easily send 10s of thousands of messages per second, usually enough... 阅读全帖
b**********1
发帖数: 215
37
来自主题: JobHunting版 - 一道Javascript 题目,请指教
(function() {
'use strict';
function dropzone() {
return function(scope, element, attrs, $log) {
var config = {
url: 'https://www.dropbox.com/home/Pricing%20Tool/Opp%201/Product%
201',
maxFilesize: 100,
paramName: "uploadfile",
maxThumbnailFilesize: 10,
parallelUploads: 1,
autoProcessQueue: true
};
var eventHandlers = {
'addedfile': function(file,$log) {
scope.data.file = file;
if (this.files[1]... 阅读全帖
b**********1
发帖数: 215
38
来自主题: JobHunting版 - 请教一道javascript 问题
请问如何在dropzone 初始化后(dropzone = new Dropzone(element[0], config);),
在获取 变量file.
(function() {
'use strict';
function dropzone() {
return function(scope, element, attrs, $log) {
var config = {
url: 'https://www.dropbox.com/home/Pricing%20Tool/Opp%201/Product%
201',
maxFilesize: 100,
paramName: "uploadfile",
maxThumbnailFilesize: 10,
parallelUploads: 1,
autoProcessQueue: true
};
var param;
var eventHandlers = {
'... 阅读全帖
h********m
发帖数: 118
39
【 以下文字转载自 SanFrancisco 讨论区 】
发信人: hazeldream (As Usual), 信区: SanFrancisco
标 题: 招人(Sr. Test Development Engineer at SanDisk)
发信站: BBS 未名空间站 (Mon Aug 22 21:51:11 2011, 美东)
Hi,
There is immdediate opening for Sr. Test Development Engineering position in
SanDisk. Please see attached job description for details.
If you are interested, please send me your resume, I will forward to the
hiring manager.
Thanks,
5003 Sr Test Development Engineer
Sr Test Development Engineer
In this position, the individu... 阅读全帖
j***b
发帖数: 5901
40
来自主题: Living版 - Question for gezhi89
似乎Air handler是需要根condenser匹配的。用water cooling的condenser是不是可以通过调节流速来匹配air handler?
s****s
发帖数: 368
41
来自主题: Living版 - 安装HVAC
打算装新的HVAC,招了三家来估价,有一家是$4995:
We propose to furnish all labor, material and equipment to install Quality
Heating & Cooling Systems Using Carrier Cooling & Heating Equipment in
accordance with the following conditions and specifications:
Equipment: 15 SEER 12.5 EER 8.7 HSPF
1 Carrier 25HCC542A003/ 3.5-Ton Comfort 15 Series Puron Heat Pump
1 Carrier FX4DNF043T00 Comfort Series Speed Fan Coil
1 Carrier KFCEH3001F15 15-KW Electric Heater Package
1 Carrier TC-PHP Comfort Series Programmable Thermost... 阅读全帖
d****2
发帖数: 6250
42
来自主题: Living版 - 美国没有分体式空调买么??

想一下,如果可以牺牲一些建筑空间来隐藏mini split的air handler的话,那是不是
就不那么难看了?我看隐藏mini split的air handler牺牲的建筑空间比中央空调的小
得多。
的话,大家把它当作普通家具,想微波炉,冰箱一样,也就不难看了。毕竟后者也不是
藏在墙里面的。要说到难看,外面的压缩机我看也挺难看,还有变压器,小区的电线杆
等等。这些东西大家感觉不到就是因为习惯了。
上的牺牲,去弄那么复杂又低效的duct?
那帮人的抵制的。如果大家不弄那么复杂的中央空调,而是装简单得多的mini split,
这些人的重要性就大大降低了,他们那块蛋糕怕是要严重缩水。
还在推销啊?你用的咋样?
C*******d
发帖数: 15836
43
来自主题: Living版 - 美国没有分体式空调买么??
说得非常好!!!!!!!!!!!

想一下,如果可以牺牲一些建筑空间来隐藏mini split的air handler的话,那是不是
就不那么难看了?我看隐藏mini split的air handler牺牲的建筑空间比中央空调的小
得多。
的话,大家把它当作普通家具,想微波炉,冰箱一样,也就不难看了。毕竟后者也不是
藏在墙里面的。要说到难看,外面的压缩机我看也挺难看,还有变压器,小区的电线杆
等等。这些东西大家感觉不到就是因为习惯了。
上的牺牲,去弄那么复杂又低效的duct?
那帮人的抵制的。如果大家不弄那么复杂的中央空调,而是装简单得多的mini split,
这些人的重要性就大大降低了,他们那块蛋糕怕是要严重缩水。
t***s
发帖数: 4666
44
来自主题: Living版 - 美国没有分体式空调买么??
我只是问他装了的觉得indoor unit怎么样. 你跟我说这么多大道理干什么?
duct都是藏在阁楼crawl space里。那里本来也派不上别的用处。

想一下,如果可以牺牲一些建筑空间来隐藏mini split的air handler的话,那是不是
就不那么难看了?我看隐藏mini split的air handler牺牲的建筑空间比中央空调的小
得多。
的话,大家把它当作普通家具,想微波炉,冰箱一样,也就不难看了。毕竟后者也不是
藏在墙里面的。要说到难看,外面的压缩机我看也挺难看,还有变压器,小区的电线杆
等等。这些东西大家感觉不到就是因为习惯了。
上的牺牲,去弄那么复杂又低效的duct?
那帮人的抵制的。如果大家不弄那么复杂的中央空调,而是装简单得多的mini split,
这些人的重要性就大大降低了,他们那块蛋糕怕是要严重缩水。
f****i
发帖数: 20252
45
来自主题: Living版 - 美国没有分体式空调买么??
每个solution都有自己的优点和缺点,没必要钻牛角尖

想一下,如果可以牺牲一些建筑空间来隐藏mini split的air handler的话,那是不是
就不那么难看了?我看隐藏mini split的air handler牺牲的建筑空间比中央空调的小
得多。
的话,大家把它当作普通家具,想微波炉,冰箱一样,也就不难看了。毕竟后者也不是
藏在墙里面的。要说到难看,外面的压缩机我看也挺难看,还有变压器,小区的电线杆
等等。这些东西大家感觉不到就是因为习惯了。
上的牺牲,去弄那么复杂又低效的duct?
那帮人的抵制的。如果大家不弄那么复杂的中央空调,而是装简单得多的mini split,
这些人的重要性就大大降低了,他们那块蛋糕怕是要严重缩水。
s**********d
发帖数: 36899
46
有的空调在air handler那里用一个大filter。
一般一个回风口的就在回风装(可能上下楼个一个),
多个回风口的在air handler。
t******u
发帖数: 3036
47
房子在connecticut靠近纽约的一个没update 过的老房子 现在要装新的必需品 ,还不
是不是装修阶段。心里觉得2万多就够了,可是一看6万太多了
能推荐个中国城的contractor吗? 应该便宜点。就是做换窗户,basement floor 加水
泥 在seal,basement 朽掉的木头换换, 装个HAVC 中央制冷制热系统, 要duck,
boiler 什么的
1.
BASEMENT: TO REMOVE /REPLACE ALL ROTTED WOOD FRAMING
$ 2,250.00
2.
LIVING ROOM FRONT WINDOW: TO REMOVE EXISTING ROTTED WINDOW
UNIT APROX. SIZE 11’X52” TO REPLACE ANY STUDS/HEADER,AND INSTALL
NEW ANDERSON/PELLA WHITE THERMO PANE LOW-E W/ARGON GAS UNIT
SIMILAR TO EXISTING ... 阅读全帖
i***e
发帖数: 9429
48
来自主题: Living版 - 解答空调

也不能说是3颗雷。冷气机在使用上不像Furnace,没有危险性。而且你一换就是3套,
又要15 SEER 品牌机种。我是抱着可省就省来试着回答你的提问。老机器只要不漏冷媒
,一但Superheat 值可以校准准确,在输出功率那方面和5年,10年机龄的机子不会有
明显区别,再用上5年,10年甚至更久也不是不可能的。15 SEER 机子如果没有相应的
Coil, Furnace或air Handler 去配合,也达不到15 SEER 的效率。如果contractor
选一个最便宜的Air Handler 或其它厂牌的,你也不懂,到最后也就意味着你花了15
SEER 机子的钱,享受的是低于15 SEER 效率的室内环境,不但用电会多,工作噪音也
会比正常的大。
i***e
发帖数: 9429
49
来自主题: Living版 - 解答空调

你还可走这个选择,电力公司的rebate去掉,最后$4000 可以拿下。
XB14 (14 SEER) 2.5 ton 4TTB4030E with TAM7A0B30H21(air Handler)
系统效率值 SEER 16 ---- Super!
这台 air handler 好啊,是variable speed ECM 马达,soft start.
非常建议!
l*****n
发帖数: 151
50
来自主题: Living版 - 解答空调
今天早上打电话问了你推荐这个配置:
XB14 (14 SEER) 2.5 ton 4TTB4030E with TAM7A0B30H21(air Handler)
扣除了电力公司的credit之后最终报价是$4404,一口价
另外dealser推荐另外一个option是用heat pump
同样的TAM7 air handler+XB13 heat pump
扣除credit之后的报价是4773
不知道这个heat pump的option如何? 请imore指点,多谢
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