variable-assignment

问题 I try to do query with a user variable, but I don't understand why, i can't update the variable in the query. I want to sum the grouped result for each day to do a chart. That really simple. SET @total := 0; SELECT "total Register", li.registerDate, @total := COUNT(*) + @total as registerNumber, @total FROM calendar c3 INNER JOIN ( SELECT c2.ide_calendar as ide_calendar, c2.name, DATE_FORMAT(i.date_creation, "%Y-%m-%d") as registerDate FROM calendrar c2 LEFT JOIN inscription i ON i.ide

问题 I export a variable to a textarea via "var_export($schools,true)" so user can edit it. Then I want to 'update' the variable with the changes made. The updates is received via POST method. I have some text that I want to become a variable . How can I do that? What I do right now is that I edit the variable manually in .php file. I want to give an web interface to users do to the same. There won't be no security issues as this will be strictly inhouse tool only. Sample of the variable $schools

问题 I am just playing around to understand smart pointers and trying to make mine but I come across a situation that I do not fully understand. Here is the code: #include <iostream> template <class T> class Holder { private: T * obj; public: Holder(T * tt) : obj(tt) { std::cout << "ctor : " << tt->dummy << std::endl; } T * operator -> () { return obj; } operator bool() { return obj; } T * const get() const { return obj; } void reset() {swap(0);} void swap(T * other) { obj = other; } Holder &

问题 In my code I have to create an object assigning some values, something like this: assign(paste("a","bis",sep="."),rep(NA,5)) then I have to replace some of them, like this: get(paste("a","bis",sep="."))[1:2] <- 7:8 But I get the following error: "Error in get(paste("a", "bis", sep = "."))[1:2] <- 7:8 : target of assignment expands to non-language object". Of course the code above is a simplified version of the real one. What I'm trying to do is to build a loop which allows me to replace in a

问题 I'm trying below code. It gives me a warning "Use of unassigned local variable 'hak' ". I guess I'm missing something here. I want it to display " 3 defa yanlış giriş yaptınız. Müşteri hizmetleri temsilcisiyle görüşünüz. İyi günler dileriz. " when local variable "hak" equals to "0". But it always display " Hatalı Giriş Yaptınız. Lütfen tekrar deneyiniz. 2 hakkınız kalmıştır. " Console.Write("Seçmek istediğiniz 'Kullanıcı Adı'nı belirtiniz: "); string kullanici_adi = Console.ReadLine();

问题 I'm trying to find the next floating point value after a towards a + 1 . My code basically looks like this: if a == 0: a = numpy.nextafter(a,a+1) I expect to get a new a that's the next floating point value, as stated above, but all I get is "Assigning result of a function call, where the function has no return (assignment-from-no-return)". I've double checked my versions of NumPy and Python, and cannot figure out what's wrong. 来源： https://stackoverflow.com/questions/54548783/fixing-no-return

问题 I'm trying to find the next floating point value after a towards a + 1 . My code basically looks like this: if a == 0: a = numpy.nextafter(a,a+1) I expect to get a new a that's the next floating point value, as stated above, but all I get is "Assigning result of a function call, where the function has no return (assignment-from-no-return)". I've double checked my versions of NumPy and Python, and cannot figure out what's wrong. 来源： https://stackoverflow.com/questions/54548783/fixing-no-return

问题 I'm through https://www.tensorflow.org/get_started/mnist/pros . Reading "Note that you can replace any tensor in your computation graph using feed_dict -- it's not restricted to just placeholders," I tried to give values to a Variable using feed_dict as follows: print(accuracy.eval(feed_dict={x: mnist.test.images, y_: mnist.test.labels, W[:, :]: np.zeros((784, 10))})) However, it gave the original accuracy 0.9149 (I expected around 0.1). Can I give constant values to Variables after

问题 For our Code Igniter application we are loading all of our javascript just before the closing body tag. so in our controllers we have $this->load->view('head', $this->head); $this->load->view('main_view_for_controller', $data); $this->load->view('foot', $this->foot); And in the foot view we have a bunch of <script src="master.js"></script> tags. These include jQuery jQuery-ui shared-functions Now this works great, until you think about JS used only on specific pages, or inline js. You can't

问题 For our Code Igniter application we are loading all of our javascript just before the closing body tag. so in our controllers we have $this->load->view('head', $this->head); $this->load->view('main_view_for_controller', $data); $this->load->view('foot', $this->foot); And in the foot view we have a bunch of <script src="master.js"></script> tags. These include jQuery jQuery-ui shared-functions Now this works great, until you think about JS used only on specific pages, or inline js. You can't