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问题 How can you set the Content-Type header to "application/x-www-form-urlencoded; charset=UTF-8" using JavaScript? I need to do this so I can view a form with french characters without generating errors. Thanks 回答1: Headers are set by the server delivering the content-type as part of the HTTP message. By the time it's in the browser and running the javascript it's too late. Do you have access to the server-side code? Why not set the content type to utf-8 in there? You can also do it as part of

问题 The tf.logical_or , tf.logical_and , and tf.select functions are very useful. However, suppose you have value x , and you wanted to see if it was in a set(a, b, c, d, e) . In python you would simply write: if x in set([a, b, c, d, e]): # Do some action. As far as I can tell, the only way to do this in TensorFlow, is to have nested 'tf.logical_or' along with 'tf.equal'. I provided just one iteration of this concept below: tf.logical_or( tf.logical_or(tf.equal(x, a), tf.equal(x, b)), tf.logical

问题 I have a wxFrame that receives events. Whenever an event comes in, I want the frame to be brought to the foreground. I'm currently using: my_frame->SetFocus(); But that doesn't seem to work for minimized frames. How can I set the frame as the active window and bring it to the front? Alternatively, is there a method that flashes the title? 回答1: I don't have a useable example but have you ever tried my_frame->Raise() It raises the window to the top of the window hierarchy. 来源： https:/

问题 I have followed the instructions at: http://bost.ocks.org/mike/path/ for creating and animating single graphs with single lines. And, figured out how to create multiple lines in a graph: Drawing Multiple Lines in D3.js Main Issue: I am having a hard time transitioning multiple lines after I shift & push in new data into my data array. I create the N lines with: (time: epoch time, steps forward) var seriesData = [[{time:1335972631000, value:23}, {time:1335972631500, value:42},...], [{time

问题 The doc about java.util.Set.contains(Object o) says: Returns true if and only if this set contains an element e such that (o==null ? e==null : o.equals(e)). That said, here is a POJO (as you can see, I overwrote its equals method): public class MonthAndDay { private int month; private int day; public MonthAndDay(int month, int day) { this.month = month; this.day = day; } @Override public boolean equals(Object obj) { MonthAndDay monthAndDay = (MonthAndDay) obj; return monthAndDay.month ==

问题 I was trying the Facebook Hacker Cup 2013 Qualification Problems in Scala, and for the 3rd problem I felt the need of an ordered Multiset but could not find one in scala's (2.10) collections. Is this data structure missing in scala's collections. Is it going to be implemented in a future version? Is the Multiset not really necessary if you have already a set implemented? 回答1: A multiset is a rather peculiar and uncommon data structure. It is not, for instance, part of Java's standard library

问题 Let's say that I want to write something like this (the {1, 3, 7, 42, 69, 550123} set is known before compilation): int x; ... if (x == 1 || x == 3 || x == 7 || x == 42 || x == 69 || x == 5550123) { ... } The condition looks ugly because we have 9 extra symbols (" || x == ") for each possible value. How can I rewrite it in a more C++ way? My best guess is: int x; ... const std::unordered_set<int> v = {1, 3, 7, 42, 69, 5550123}; if (v.count(x)) { ... } It has O(1) average complexity with some

问题 Can anybody give me an intuitive explanation of why the Ackermann function http://en.wikipedia.org/wiki/Ackermann_function is related to the amortized complexity of union-find algorithm used for disjoint sets http://en.wikipedia.org/wiki/Disjoint-set_data_structure? The analysis in Tarjan's data structure book isn't very intuitive. I also looked it up in Introduction to Algorithms, but it also seems too rigorous and non-intuitive. Thanks for your help! 回答1: Applied to Disjoint-set forests

问题 I'm looking for a PriorityQueue implementation which is also a Set. The compareTo implementation if its elements must not have the requirement to be consistent with the implementation of equals . Is there somewhere such a implementation for java? Update: I implemented it now using a SortedSet as the internal collection. So I only had to implement the missing methods to satisfy the queue interface. I also forgot to mention that it also had to be a bounded queue, so it features a capacity and

问题 I have a C++ STL set with a custom ordering defined. The idea was that when items get added to the set, they're naturally ordered as I want them. However, what I've just realised is that the ordering predicate can change as time goes by. Presumably, the items in the set will then no longer be in order. So two questions really: Is it harmful that the items would then be out of order? Am I right in saying that the worst that can happen is that new entries may get put into the wrong place (which