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【解决】ChartData2D 二维图表组件报错 - 用户反馈 - 清泛IT社区，为创新赋能！
...x: 9, Size: 1 at java.util.ArrayList.add(ArrayList.java:483) at com.google.appinventor.components.runtime.LineChartBaseDataModel.addEntryFromTuple(LineChartBaseDataModel.java:89) at
com.google.appinventor.components.runtime.ChartData2D$1.run(ChartData2D.java:81)at java.util.concurrent.ThreadPoolExe...
How can I format a number into a string with leading zeros?
...d Mar 24 '11 at 11:26
Øyvind BråthenØyvind Bråthen
52.2k2525 gold badges113113 silver badges138138 bronze badges
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make_unique and perfect forwarding
...ered Mar 11 '12 at 19:06
Johan RådeJohan Råde
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Understanding Python's “is” operator
...floats and larger ints aren't interned.
– Magnus Lyckå
Sep 21 '17 at 13:56
2
@MagnusLyckå there...
SQL command to display history of queries
I would like to display my executed sql command history in my MYSQL Query Browser. What is the sql statement for displaying history?
...
使用虚拟现实和App Inventor进行实验 · App Inventor 2 中文网
...ctivityClass 应指向应用程序活动类（对于此演示，它是 com.appinventor.cardboard.ui.PanoramaActivity）
ActivityPackage 即 com.appinventor.cardboard
对于应用程序的块部分，唯一需要的 App Inventor 块是按钮单击的事件处理程序。每个事件处理程序...
C++11 emplace_back on vector?
...score_d: I'm not sure that I remember every detail of what I was thinking 3½ years ago, but I thinj what I was suggesting was that if you just use a tuple instead of defining a POD struct, then you get a constructor for free, which means that you get the emplace syntax for free (among other things ...
How can I get this ASP.NET MVC SelectList to work?
I create a selectList in my controller, to display in the view.
23 Answers
23
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How to prevent http file caching in Apache httpd (MAMP)
... 30 '12 at 15:30
Charlie RudenstålCharlie Rudenstål
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How do I do a case-insensitive string comparison?
...trings in all instances and therefore the normalization needs to be done ('å' vs. 'å'). D145 introduces "canonical caseless matching":
import unicodedata
def NFD(text):
return unicodedata.normalize('NFD', text)
def canonical_caseless(text):
return NFD(NFD(text).casefold())
NFD() is c...