Tag：Cell
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The solution to the scientific counting method of the number appearing in laravel’s using maatnesite / Excel
When exporting excel using maatnesite / Excel package, a large string of numbers such as mobile phone number will be stored in some cells. This string of numbers will be processed into scientific counting method by Excel software, which will cause a lot of trouble in subsequent data processing. It will be very troublesome to […]
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Use python, nodejs, xlsx full. Min.js processing Excel data of provinces and cities into JSON
Use python, nodejs, xlsx full. Min.js processing Excel data of provinces and cities into JSON** Requirement Description: we usually get the data format of Excel, but we usually use JSON data in the code, so we need to convert the data content in Excel into JSON format. It can be implemented in three ways: Python, […]
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Laravel maatnesite / Excel 3.1 implements export and import
Write in front The function of export and import is a common function developed at ordinary times. Laravel maatnesite excel has been updated in 3 x. This time, I will package a simple general version and record the problems encountered. environment PHP: ^7.3.4 Laravel: ^5.7 install composer require maatwebsite/excel Export Excel create a file Then in composer […]
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Asynchronous refresh of uitableview reloaddata
Introduction: Reloaddata of uitableview is asynchronous. After calling this method, it will continue to execute other codes (such as tableview layout, cell display, height calculation and other proxy methods, or some of its own codes), and will not block the main thread; That is, reloaddate does not wait for the tableview to be updated before […]
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[py] word processing, technology selection, word to PDF
1. Install Win32 Library python -m pip install pypiwin32 Disadvantages:Windows platform only, with Office installed advantage:Some APIs are very flexible and can be operated directly with Microsoft API documents Overall architecture Tables — Table — Columns — Column — Cells — Cell — Rows — Row Microsoft API word:https://docs.microsoft.com/en-us/dotnet/ap… https://docs.microsoft.com/zh-cn/office/vb… excel:https://docs.microsoft.com/en-us/dotnet/ap…https://docs.microsoft.com/zh-cn/office/vb… Explain row: Note that […]
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Excel releases version 2.3.0, the go language excel document basic library
Excel is a basic library written in go language for operating Office Excel documents, which is based on ecma-376 and ISO / IEC 29500 international standards. You can use it to read and write from Microsoft Excel ™ Spreadsheet documents created in version 2007 and above. It supports xlsx / xlsm / xltm and other […]
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It’s no exaggeration to say that among programmers, I can be regarded as playing excel more smoothly!
Pictures and texts are like icing on the cake Generally speaking, programmers are not good at writing charts. In our work, we have various development tasks every day. Information consistency in the team is very important. For each development task, it is necessary to have a development plan to let the stakeholders know. A document […]
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Force deduction leetcode algorithm foundation 21 day question brushing record ②
Force buckle [leetcode]Basic algorithm 21 days brush questionsRecord 2 Hit the question, hit the question, hit the question, stick to it!!! ⭐ Breadth first search / depth first search 200. Number of islands Give you a two-dimensional grid composed of ‘1’ (land) and ‘0’ (water). Please calculate the number of islands in the grid. Islands […]
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Longadder source code analysis
sketch Longadder is a new class in jdk8 for statistics in high concurrency scenarios. Previously, atomicinteger and atomiclong used CAS to update variables, which has better performance than synchronized blocking algorithms. However, in the case of high concurrency, a large number of threads update a variable at the same time, and only one thread can […]
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First meet Yolo
What is yolo2 algorithm “You Only Look Once” The core idea of Yolo is to use the whole picture as the input of the network and directly return the location and category of the bounding box in the output layer.Yolo algorithm uses a separate CNN model to realize end-to-end target detection. The whole system is […]
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How to map the mouse position in CSS and realize the effect of controlling page elements through mouse movement
To map the mouse position or achieve the drag effect, we canJavaScriptDo this in. But in fact, there are more concise methods in CSS, which we can not useJavaScriptIn this case, the same function can still be realized! Only CSS can be used to simulate the “click and drag” effect of the mouse. Let’s see […]
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Import Java from Excel to database
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