大约有 3,516 项符合查询结果(耗时:0.0292秒) [XML]

https://stackoverflow.com/ques... 

How to throw std::exceptions with variable messages?

... There are different exceptions such as runtime_error, range_error, overflow_error, logic_error, etc.. You need to pass the string into its constructor, and you can concatenate whatever you want to your message. That's just a string operation. std::string errorMessage = std::st...
https://stackoverflow.com/ques... 

What is the id( ) function used for?

... But if you use numbers beyond the range of -5 to 256, you won't get the same id for fii variable. – saurav Jan 23 '18 at 5:49 ...
https://stackoverflow.com/ques... 

find vs find_by vs where

... When query value out of range, find_by will rescue ::RangeError from where(*args) and return nil. – fangxing May 6 '19 at 8:39 ...
https://stackoverflow.com/ques... 

Find the last element of an array while using a foreach loop in PHP

...ators as well, especially as it has been asked for a standard way: $arr = range(1, 3); $it = new CachingIterator(new ArrayIterator($arr)); foreach($it as $key => $value) { if (!$it->hasNext()) echo 'Last:'; echo $value, "\n"; } You might find something that does work more flexible for ...
https://stackoverflow.com/ques... 

How to use @Nullable and @Nonnull annotations more effectively?

...otations, the primary location for describing things like nullability or ranges was in the javadoc. With Type annotations, this communication comes into the bytecode in a way for compile-time verification. Your code should still perform runtime validation. ...
https://stackoverflow.com/ques... 

Can I bind an array to an IN() condition?

... IN() can use an index, and counts as a range scan. FIND_IN_SET() can't use an index. – Bill Karwin Oct 3 '13 at 0:59 1 ...
https://stackoverflow.com/ques... 

Pandas timeseries plot setting x-axis major and minor ticks and labels

... matplotlib.pyplot as plt import matplotlib.dates as dates idx = pd.date_range('2011-05-01', '2011-07-01') s = pd.Series(np.random.randn(len(idx)), index=idx) fig, ax = plt.subplots() ax.plot_date(idx.to_pydatetime(), s, 'v-') ax.xaxis.set_minor_locator(dates.WeekdayLocator(byweekday=(1), ...
https://stackoverflow.com/ques... 

Is there a Java API that can create rich Word documents? [closed]

...ed (commercial) class library for Java that enables you to perform a great range of document processing tasks directly within your Java applications. Aspose.Words for Java supports DOC, OOXML, RTF, HTML and OpenDocument formats. With Aspose.Words you can generate, modify, and convert documents ...
https://stackoverflow.com/ques... 

Get bitcoin historical data [closed]

... @Lykegenes What is the second column? The values are in the range 0.5-33, which can't be the exchange rate USD/BTC. – holdenlee Oct 28 '14 at 14:03 4 ...
https://stackoverflow.com/ques... 

How can I loop through a C++ map of maps?

...uestion but the remaining answers are outdated as of C++11 - you can use a ranged based for loop and simply do: std::map<std::string, std::map<std::string, std::string>> mymap; for(auto const &ent1 : mymap) { // ent1.first is the first key for(auto const &ent2 : ent1.second...