equivalent

问题 I am building a small app which captures mouse clicks. I wrote the prototype in jquery but, since it is a small app focusing on speed, embedding jquery to use just one function would be an overkill. I tried to adapt this example from JavascriptKit: document.getElementById("alphanumeric").onkeypress=function(e){ //blah..blah..blah.. } but it didn't work when I tried document.getElementsByTagName("x").onclick What am I doing wrong? 回答1: Say you have a list of p tags you would like to capture

问题 I have a class with some static members, and I want to run some code to initialize them (suppose this code cannot be converted into a simple expression). In Java, I would just do class MyClass { static int myDatum; static { /* do some computation which sets myDatum */ } } Unless I'm mistaken, C++ does not allow for such static code blocks, right? What should I be doing instead? I would like solution for both of the following options: Initialization happens when process loads (or when the DLL

问题 I'm looking for a C# equivalent for the php sprintf function. I have the folowing string: "There are %s hits, %s are an exact match." I want %s to be replaced with the numbers that the query returns. In php I would di the folowing: $res = sprintf("There are %s hits, %s are an exact match", $number1, $number2); How do I do this in C#? I thought about string.replace() but that would only work with 1 piece that should be replaced. In this case there are multiple. 回答1: You are looking for String

问题 Typescript provides Object Oriented & Generic programming paradigms apart from Functional programming offered by Javascript. The keyword prototype is a very powerful and sometimes a dangerous tool. In general, I read that it simulates the inheritance aspect in Javascript. So preferably, what is the [closest] alternative of prototype in .ts? 回答1: Typescript provides Object Oriented & Generic programming paradigms apart from Functional programming offered by Javascript. No, JavaScript itself

问题 First excuse my english I'm not a native speaker and sorry if it looks rough, this is the first time that I post on this site. My problem is quite simple I think. Let's say, we have : class A { function foo() { function bar ($arg){ echo $this->baz, $arg; } bar("world !"); } protected $baz = "Hello "; } $qux = new A; $qux->foo(); In this example, "$this" obviously doesn't refer to my object "$qux". How should I do to make it reffer to "$qux"? As might be in JavaScript : bar.bind(this, "world !

问题 This question already has answers here : Sequence-zip function for c++11? (13 answers) Closed 6 years ago . I would like to zip two arrays in C++ (as in Python) using a standard library function, so is there any equivalent for Python's built-in function zip()? 回答1: int **zip(int *arr1, int *arr2, int length) { int **ret = new int*[length]; for(int i = 0; i<length; i++) { ret[i] = new int[2]; ret[i][0] = arr1[i]; ret[i][1] = arr2[i]; } return ret; } 来源： https://stackoverflow.com/questions

问题 In delphi the "ZeroMemory" procedure, ask for two parameters. CODE EXAMPLE procedure ZeroMemory(Destination: Pointer; Length: DWORD); begin FillChar(Destination^, Length, 0); end; I want make this, or similar in C#... so, what's their equivalent? thanks in advance! 回答1: .NET framework objects are always initialized to a known state .NET framework value types are automatically 'zeroed' -- which means that the framework guarantees that it is initialized into its natural default value before it

问题 I am a beginner in C programming language but I have knowledge of programming in QBasic. I make lots of small programs in Qbasic to solve my basic tasks and I am recently rewriting those programs into C . While rewriting one of the programs I stumbled upon a problem where the computer would be able to get input but without pausing the program execution. Unfortunately, scanf would cause the program to wait until the user presses any key and presses enter but I need my program run and still be

问题 How to get the same result as the following objective-c encrypting method with the command line openssl ? - (NSData *)AES256EncryptWithKey:(NSString *)key { NSData *returnData = nil; char keyPtr[kCCKeySizeAES256+1]; bzero(keyPtr, sizeof(keyPtr)); [key getCString:keyPtr maxLength:sizeof(keyPtr) encoding:NSUTF8StringEncoding]; NSUInteger dataLength = [self length]; size_t bufferSize = dataLength + kCCBlockSizeAES128; void *buffer = malloc(bufferSize); size_t numBytesEncrypted = 0;

问题 I have my habits with LaTeX, then in HTML I don’t know which element can replace the LaTeX’s \subparagraph{} command. <br /> isn’t a good idea because it is the equivalent of the blank line in LaTeX. I can create a special class “subparagraph” but before I want to know if HTML didn’t have a similar element. The \subparagrahp{} LaTeX’s command is something between the paragraph and the HTML’s <br /> element. Overapi didn’t tell me more :/ Someone have any idea please? 回答1: You could use a div