call

问题 I have a main function that runs a few functions during initialization and then runs a while loop that waits for commands from the UART. When I see a specific command (let's say reset), I call a function that returns a value. I want to do the following things: Save the returned value Start the main function again with the returned value. The returned value is required during initialization of the functions in main. I am newbie in C and I am not able to figure out a way save variable value in

问题 How can I resolve the ambiguous call between these two in C++? Color(int, int, int) Color(float, float, float) It is both ambiguous when the values are hardcoded i.e. Color(1, 2, 3) and when they are variables Color(r, g, b) . Why wouldn't the compiler resolve according to data type? In variable form? EDIT: Sorry, too much C++ makes me forget there's a other languages. And there is not much "full code" that was all about it. float x, y, z; int r, g, b; Color(1, 2, 3); // ambiguous Color(1.0,

问题 This question is sort of built from my last question mainly because I want to avoid using Global variables because of its limitations. See answer to link here: How do I call upon an array created by a different function? I'm attempting to use an array created from a user-defined function in another user-defined function. I want to avoid setting the array as Global because the second function won't automatically recalculate. For this exercise, I have two separate functions. The first function

问题 I am trying to understand the recursion call in the below code snippet. static long fib(int n) { return n <= 1 ? n : fib(n-1) + fib(n-2); } Which function call does get called first? How does the equation work after the calls? Do both of these get called once and then equation applied or first one called and then the 2nd one? Maybe a very simple question! 回答1: Java and C&sharp; Sub-expressions are evaluated in left-to-right order. fib(n-1) is evaluated before fib(n-2) . See What are the rules

问题 I am learning Lua and I would rather use the colon ( : ) for methods. Unfortunately, it's not working everywhere. See my code: Set= {} local mt= {} function Set:new(m) local set= {} setmetatable(set,mt) for a,b in pairs (m) do set[b]=true end return set end function Set.union(a,b) local res=Set:new ({}) for k in pairs (a) do res[k]=true end for k in pairs (b) do res[k]=true end return res end mt.__add=Set.union -- why Set:union() is not working here ? s1=Set:new {22,55,77} s2=Set:new {2,5,3}

问题 I have some javascript that is supposed to run after the window loads but for some reason, it never runs. Here's my code: function setClasses(){ document.getElementsByClassName("gchoice_35_0")[0].onclick = sedanShow; document.getElementsByClassName("gchoice_22_0")[0].onclick = sedanShow; document.getElementsByClassName("gchoice_34_0")[0].onclick = sedanShow; document.getElementsByClassName("gchoice_34_1")[0].onclick = suvShow; document.getElementsByClassName("gchoice_35_1")[0].onclick =

问题 I have added a ListView inside a fragment, when clicking that listview i see single itemview. when i click the button in that single item view a call should go to that particular id in the listview. button is for call , when its clicked and automatic cal should go . my code is down , phone numbers are stored in side parse server. if anyone knows please help btn = (Button) findViewById(R.id.button56) ; btn.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) {

问题 In python, calling XML-RPC methods involves invoking methods on a proxy object: from xmlrpclib import ServerProxy print ServerProxy('https://example.com/rpc').api.hello_there('John') In some other languages, like perl, you pass your method name as a method parameter. use Frontier::Client; $p = Frontier::Client->new(url => 'https://example.com/rpc'); $result = $p->call('api.hello_there', 'John'); print $result; Is there a way to invoke XML-RPC methods by name, as strings, in Python? 回答1: Just

问题 This question already has answers here : Use `for` in `print()` will give a generator on Python 3.x? [duplicate] (3 answers) Closed 4 months ago . When I read the question Python string.join(list) on object array rather than string array, I find the following sentence: ', '.join(str(x) for x in list) I have already know about (str(x) for x in list) is a generator expression, I also know generator is an iterable. The following code verify the correctness of my view. >>> gen = (x for x in [1,2

问题 I am a beginner in using Prototype library. I want to know how we can pass multiple arguments to onSuccess/onFailure function in Prototype? For example:- new Ajax.Request('testurl',{ method: 'post', parameters: {param1:"A", param2:"B", param3:"C"}, onSuccess: fnSccs, onFailure: fnFail }) In my success function fnSccs:- function fnSccs(response) { alert(response.responseText); } I want to pass a new argument to fnSccs function. How is that possible. Thanks for any help. 回答1: You could wrap