m*******d
发帖数: 242 | 1 请教一个Qt的问题。
我有些数据，比如：
X Y
1 3
2.3 9.1
2.5 10.1
...
我想用Qt把这个X-Y曲线画出来(多条曲线)，请问应该怎么弄？谢谢！
看到有一个Qwt的library,如果不想用别人的library，就用Qt3自带的widget可以吗？谢
了！ |
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j****y
发帖数: 684 | 2 来自主题: Programming版 - 关于QT 用过QT，请问这这东西需要学一下吗？
QT用的多吗？不是说开发组都扯了？ |
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b***i
发帖数: 3043 | 3 来自主题: Programming版 - 关于QT Windows还是最好用C#吧，还可以上到xBox360上。Qt不行。Linux应该可以用Qt。不如
学java啦。 |
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d**********x
发帖数: 4083 | 4 来自主题: Programming版 - 关于QT Qt 4已经是很成熟的库了
自己拿来写点小东西
都很方便。
这种东西其实无所谓学不学，Qt就那么点东西，文档又写得很好，用就是了 |
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h**t
发帖数: 1678 | 5 我对C++编程不是很熟悉，如果问题太傻不要拍砖。
比如说用Qt做一个GUI,设计完了以后。是需要把这个c++code做一个dll出来，然后load
到自己想要的平台上？这个GUI怎么能够脱离Qt单独运行？
它的code里面有很多类似于QApplication这样他自己定义的library,header files....
如果用VS 或者minGW 在command prompt上compile，会出现no such file or
directory 一类的错误。
Many thanks! |
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f********s
发帖数: 526 | 6 谢谢楼上的两位大虾， 那请问啥是用动态链接发布啊？ 是安装我的软件的时候要提示
得安装QT的库才行？那不是很麻烦？
另外， 如果静态链接发布的话， 是不是我在的公司要是有一个developer开发用到QT
， 就买一个license就行了， 不管我们的软件卖出去多少？ |
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d****i
发帖数: 4809 | 7 确实，Qt已经cover了一些主流的嵌入式实时操作系统：VxWorks, Integrity, QNX, 这
个很赞，以前的嵌入式上的UI都是用自己的proprietary的库或者第三方提供的GUI库，
现在一个Qt解决所有问题。 |
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d****i
发帖数: 4809 | 8 不知道Qt开发出来的Android的native UI和Android自己的C/C++ NDK开发出来的效果比
如何，我看到的Qt for Android demo是很好很靓，但是没有和Android NDK的side to
side的比较。 |
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l*********s
发帖数: 5409 | 9 据说qt的性能不好，不过再差也比java强，java能及格那qt应该可以。不过state
machine framework／Qobject models神码的和lz的user case似乎全不相干？lz 展开
说说你的思路？ |
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s*******g
发帖数: 243 | 10 也不需要逆天的性能，不然现在java的实现根本没法用了。根据现在做的一些
benchmark和profiling，c++/stl做的有现在java版6-8倍的速度，这还没仔细优化c++
code。最后能达到现在3-5倍就满意了。现在是疑问是用Qt这么复杂的framework会不会
影响performance，会影响多少。尤其Qt看上去有很多特性是runtime的，不是template
那样compile时候就做好的。 |
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L*1
发帖数: 11537 | 11 You do not have to use UI in order to use Qt. We used Qt for handling xml
parsing and international characters and it worked out pretty well. |
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p*****g
发帖数: 445 | 12 我看玩第一句话，就知道Qt肯定不合适。
求性能，qt不是好选择。 |
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p*****g
发帖数: 445 | 13 而且如果你非要用qt来干这活，涉及优化和库裁剪，时间足够的话，可以折腾一下。
我也用qt，但是也仅用于UI方面，底层需要效率的东西都拿了别的库来做。 |
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N******K
发帖数: 10202 | 14 win7用最新版Qt creator没这个问题
centos7用最新版Qt creator有这个问题 不知道怎么回事 |
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t**c
发帖数: 97 | 16
there is a tmake command provided by qt, you just write a simple template file
and tmake will generate a makefile for you. Tutorials and sample files are
included in the qt distribution, go check those tutorial and sample programs,
and I think you will find out how to write a cool makefile in 5 minutes. |
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t**c
发帖数: 97 | 17
刚才查了一下, tmake是需要另外download的, 其实就是一组专门给qt写makefile 的
perl scripts.
ftp://ftp.trolltech.com/freebies/tmake/
如果是专门给qt写makefile, tmake还是挺方便的, 看看写出来的makefile也是一种
享受//hehe |
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i*******r
发帖数: 377 | 19 if you like C using gtk
if you like C++ using QT
if you like perl using perl-GTK or perl-QT
if you like python using python-GTK
but, the easy way is modify gtop or ktop... |
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w*******y
发帖数: 60932 | 20 Mobil1 Synthetic Motor Oil (5 qt.) and Mobil1 Filter for $29.99 at Auto Zone
Valid from Sep. 21,2010 - October 18,2010 (B&M only)
Get 5 QTS. MOBIL 1 SYNTHETIC MOTOR OIL & MOBIL 1 OIL FILTER for $29.99 (any
grade)
Cheapest price anywhere!!!
Also, if your interested int getting the Mobil 1 Extended Performance or
High Mileage, I think they are a little more, so they come out either $33/$
35 with free Mobil1 Filter.
If you don't want synthetic oil, they also have Mobil Clean 5000 (5 qt.) w/
free fi... 阅读全帖 |
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w*******y
发帖数: 60932 | 21 Mobil-1 synthetic is $7.49/qt at OSH.
Buy 5 qts, $37.45.
Use a 10 off 30 coupon from the following thread, bringing it to $27.45.
http:// et/showthrea...=232156 3
Then, use the $12 off mail-in rebate (only good thru Oct 31) here:
Link:
https://www.mobiloil.com/usa-english/motoroil/promotions/promotions.aspx
Brings it down to $15.45 after coupon and MIR.
I price-checked 10W-30 and 5W-20 in Pasadena, CA, before I posted. Last
week I was in the store and they have a wider selection of weights, s... 阅读全帖 |
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w*******y
发帖数: 60932 | 23 Code "NTLSHIP" gets free shipping up to $20 worth of shipping costs with no
minimum. If you go over with multiple products, divide them up and place a
separate order. The crock and blender seem to be back in stock for now. May
not last long.
It does depend on your location as to whether or not some items would arrive
on time for Christmas.
Rival 2-1/2-Qt Slow Cooker $8:
http://www.meijer.com/s/rival-2-1-2-qt-slow-cooker/_/R-171330
Hamilton Beach Single Serve Blender $10:
http://www.meijer.com/s/... 阅读全帖 |
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w*******y
发帖数: 60932 | 24 Just found Mobil 1 0W-40 for $4.99/Qt at my local Kragen (O'reilly).
The usual prices are upward $7 and its a good deal if you plan to stock-up
for your future oil changes. It's a hard to find oil and usually never goes
on sale. Ever since Advance Auto stopped shipping oil, I have been looking
out for good deals and this I think is a very good one
The other weights are also priced at $4.99/Qt, limit 24 per person
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w*******y
发帖数: 60932 | 27 Bloomingdales has the All-Clad 12 quart Stainless-Steel Stock Pot for $190.
99 with Free Shipping and Tax Free in some states (the only charge sales tax
in states where they have a physical store).
This is not the multi-cooker 12 qt pot that only has an aluminum disk at
the bottom, this is the original All-Clad, with stainless exterior, aluminum
core and stainless interior.
Pretty good deal as this goes for $365.00 to $390.00 at most other stores.
Link:
http://www1.bloomingdales.com/shop/produc... 阅读全帖 |
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w*******y
发帖数: 60932 | 28 Advanced Auto Parts is having a sale on oil.
Usually doesnt include the European Formula but it looks like it is working
this time.
Buy a 5 Plus Quarts jug or 5 single quarts of Mobil 1 Full Synthetic motor
oil and a Mobil 1 oil filter for $32.99. Get 25% off up to 4 additional
quarts.
Savings depends on the cost of your filter but for a $13 filter you are
paying around $4.75/qt. A lot better than most places. (If your filter is $
20 like mine you are only paying around $4 per quart)
You get the... 阅读全帖 |
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b****n
发帖数: 865 | 29 ★★★
却见俞莲舟越打越快，可是一招一式却无不清清楚楚，便如擅于唱曲的名家，虽唱到了
极快之处，但板眼吐字，仍是交代得干净利落，无半点模糊拖沓。群雄纷纷站起，有些
站在后面的，索性登上桌椅，心下尽皆赞叹：“武当俞二侠名不虚传，这一口气不停的
急攻，招式竟全无重复。”
★★★
(那个站到椅子上心下赞叹的"群雄", 就是我...)
Kill Bill 2 的一开始,是乌玛.瑟曼开车时的一段自白. 公路在女演员背后
的屏幕上向远处退去,演员在汽车驾驶座上正对镜头,面无表情,代表主人公内心
独白的话外音语调平静,不露情感,仿佛是在讲一个别人的故事. 黑白的画面,灰暗的色调,
宿命的口吻,正是好来坞黑色犯罪电影的标志.
虽然QT在这里大明大摆的模仿了Film Noir, 他要抄的可不只这一家.教堂血案里有西部片
的痕迹, 白眉老头是中国功夫片的翻版, Lucy Liu的童年用了日本漫画, 日本花园的决斗
也许是对samurai电影的敬礼. 除了对各种类型片的模仿外, Kill Bill还有QT擅长的时间
穿插, 墓穴一场中屏幕全黑,只闻其声的处理,也是机心别出.
明偷暗抢,抄袭别人风格,情节的片 |
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s*********r
发帖数: 8929 | 31 有什么其他办法可以有qt照片么，
你之前说可以找她本人， 试了，但是失败了。 |
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s*********r
发帖数: 8929 | 36 同呼唤
QT 照会是史上最贵么？
也不好让你太亏了，到时候格格巫可以给你奔个 |
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l**********g
发帖数: 6198 | 42 QT?
是鹊桥版的一个mm，我偶尔逛逛鹊桥，感觉是一个很有诚意征婚的，然后性格很好的mm
最近偶尔来这里逛逛（版大拉过来的吧好像）
别的我就不知道了 |
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t**m
发帖数: 60 | 43 老车漏油
问下机油标尺从max漏到最底端大概相当于多少qt的机油
如果到了标尺的最低端，发动机里大概还有多少机油呢？对发动机会有多大伤害呢？ |
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s*****n
发帖数: 956 | 44 Every time I change oil, I was told that the oil is 0.5-1 qt low. Is there
a way to stop the oil burning? |
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e***7
发帖数: 862 | 45 14年的车，以前都是带5qt的castrol 0W20，上次dealer说得加5.5 qt，用不用这次换
多买点？ |
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y***y
发帖数: 151 | 46 我也是自己买油(mobil 1) 和filter (原厂蓝色那种）去换，去dealer的话labor收25
，去附近小店换油加tire rotation 收35的labor. 我每次去换一般是用5.3 qt 左右。
车是15年的。 |
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u*u
发帖数: 14949 | 47 二手交易风险自负！请自行验证是否合法和一手卡！:
我想卖的物品:
KitchenAid® Artisan® 5-qt. Sunshine Yellow Stand Mixer
单张面值:
可接受价格(必须明码标价！):
$280
物品新旧要求:
New, UPC removed, in factory sealed box
邮寄方式要求:
Your label ready
买卖双方谁承担邮寄损失(Required if not code only):
付款方式说明:
其他补充说明:
广告的有效期:
物品来源(Required for All Cards!):
我的联系方式:
PM
Warranty期限:
能否证明是合法的一手卡?(Required for All Cards!):
state and zip:
WI 53XXX |
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u*u
发帖数: 14949 | 48 二手交易风险自负！请自行验证是否合法和一手卡！:
我想卖的物品:
KitchenAid® Artisan® 5-qt. Sunshine Yellow Stand Mixer
单张面值:
可接受价格(必须明码标价！):
$280
物品新旧要求:
New, UPC removed, in factory sealed box
邮寄方式要求:
Your label ready
买卖双方谁承担邮寄损失(Required if not code only):
付款方式说明:
其他补充说明:
广告的有效期:
物品来源(Required for All Cards!):
我的联系方式:
PM
Warranty期限:
能否证明是合法的一手卡?(Required for All Cards!):
state and zip:
WI 53XXX |
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u*u
发帖数: 14949 | 49 KitchenAid® Artisan® 5-qt.Stand Mixer, Yellow
@ $280
New, in factory sealed box
pm, please |
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h*****g
发帖数: 596 | 50 Reload this Page 5-Qt KitchenAid Artisan Series Tilt Head Stand Mixer (
Refurbished, White) $142
就剩pro的了， 229－30％off
174 and change to Northern NY, the only color and style that were left was
KitchenAid® Refurbished KitchenAid® Professional 5™ Plus
Series Bowl Lift Stand Mixer
SKU:RKV25G0XER besides the satin copper and the nickel plated. (559+) |
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