Tag:element

  • The biggest difference between C + + pointer array and two-dimensional array

    Time:2022-5-5

    The following essay is about the description of pointer array and the biggest difference between pointer array and two-dimensional array. Pointer array The elements of the array are pointer type Example: using pointer array to store matrix 1 #include 2 using namespace std; 3 int main() { 4 int line1[] = { 1, 0, 0 […]

  • HTML draggable attribute

    Time:2022-5-5

    draggable This attribute specifies whether the element can be dragged. By default, links and avatars can be dragged event Dragged element ondragstartInstant trigger of dragging ondragContinuous triggering during dragging ondragendDrag end trigger Target element ondragenterTrigger for entering the target element (mouse cursor entry) ondragoverEntering and leaving the target element is triggered continuously ondragleaveTriggered when leaving […]

  • Analysis on the use and implementation principle of array container of super detailed STL

    Time:2022-5-5

    To explain, I use gcc7 1.0 compiler, standard library source code is also this version. This article describes the use and principle of array in STL. Reading guide Array is actually an array of fixed size. The element type and size are specified when declaring. The prototype is as follows: template<typename _Tp, std::size_t _Nm> struct […]

  • #Raise your hands and learn Python # list. Once you finish learning python, you will learn half of it

    Time:2022-5-5

    4、 As soon as you finish learning the list, python will be half 4.1 what is a list List, first remember that the English is list. It is a data type in python that can dynamically add and delete content, which is composed of a series of elements. To put it bluntly, a list is […]

  • Unity realizes a * routing algorithm learning 2.0

    Time:2022-5-4

    Binary tree storage path node Although the routing algorithm is implemented in 1.0, the performance of using list < > to save nodes is not strong enough Pathfinding algorithm learning 1.0 here:https://www.cnblogs.com/AlphaIcarus/p/16185843.html A better approach is to use a heap (or tree) instead of a list storage nodeNote: Here we use arrays to implement the […]

  • Programmer “confused code” behavior reward! Why does this code run successfully?

    Time:2022-5-4

    When it comes to programmers, the usual impression for laymen is that they have plaid shirts, large underpants, flip flops, unkempt hair (bald head), dirty face and black circles under their eyes, and that “people are stupid and die quickly”. This is the inherent idea of programmers. However, as programmers in the new century, we […]

  • Tutorial on developing tab instances using object-oriented method in native JS

    Time:2022-5-4

    This tutorial encapsulates an example of a tab through the object-oriented method of JS, and explains how the object-oriented function of JS is realized in the example. Generally, the encapsulated tab program only needs a div element. Other elements are generated through JSON data, so the encapsulated tab instance is very convenient to call. First […]

  • Pit of pointer events

    Time:2022-5-4

    When we do the function of dragging page elements, we will consider the adaptation between the PC end and the mobile end, so we use the combination of MouseDown, MouseMove and mouseup on the PC end, and the combination of touchstart, touchmove and touchend on the mobile end will also be active,If both ends are […]

  • How to quickly implement a virtual DOM system

    Time:2022-5-3

    Virtual DOM is one of the technical cores of the mainstream front-end framework. This paper describes how to implement a simple virtual DOM system. Why do I need virtual DOM? Virtual DOM is a tree composed of virtual nodes, which shows the structure of real dom. These virtual nodes are lightweight and stateless, usually strings […]

  • Spring source code parsing 8: default namespace processor in XML configuration

    Time:2022-5-3

    Spring source code parsing 8: default namespace processor in XML configuration staySpring source code analysis 5: bean configuration, definition and registrationIn, the default namespace processor in some XML configurations has not been resolved SimpleConstructorNamespaceHandler SimplePropertyNamespaceHandler UtilNamespaceHandler ContextNamespaceHandler JeeNamespaceHandler LangNamespaceHandler TaskNamespaceHandler CacheNamespaceHandler MvcNamespaceHandler AopNamespaceHandler JdbcNamespaceHandler TxNamespaceHandler Here only a few commonly used are analyzed SimpleConstructorNamespaceHandler SimplePropertyNamespaceHandler […]

  • Top 10 kotlin issues on stack overflow

    Time:2022-5-3

    These are some of the most popular kotlin problems on stack overflow. If you analyze each problem more deeply, you can write a separate article. I will analyze these problems later. Through this article, you will learn the following: Array<Int>andIntArrayAnd how to choose IterableandSequenceAnd how to choose Eight common methods of for loop traversal How […]