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PHP implements the method of converting WAV files into image files and displaying them in the page

This article describes the PHP implementation of the WAV file into the image file and display in the page method. Share to everyone for your reference. The specific analysis is as follows: Requirements: Convert WAV files to PNG files and display

Example analysis of JavaScript function programming

This article mainly introduces the JavaScript function programming, the example analyzes the JavaScript function type programming the related use skill, very has the practical value, the need friend may refer to the The examples in this article

A bidirectional encryption and decryption method (PHP)

Encryption | decryption Based on the conversion of the system ?Made by Huyang @2005-01-20| | 11-04-06# #用n进位制到m进位制# #0 ~9a-z, up to 36 in rangeprint ' encryption decryption method ';Class carry{function Carry ($n, $m){$this->n= $n;$this->m=

Hdu 3339 in Action: Shortest circuit + backpack

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Link: http://acm.hdu.edu.cn/showproblem.php?pid=3339 Topic: Problem Description Since 1945, when the ' the ' nuclear bomb was exploded by the ' Manhattan Project team in the US, the number of nuclear weapon s have soared across the

Flash Production Example Tutorial: Two-point random polyline effect

Tutorials | random The effect is as follows: (with the mouse any click Flash animation) Click here to download the source file Image in the past or rookie when watching a lightning effect mode, because did not read the source file, has not been to

PHP analyzes. wav files and draws a wave chart in PNG format

Using PHP to analyze and draw the waveform of audio files, the Internet is still rarely seen. In fact, as long as the specification of WAV files, using PHP fseek,fopen,fopen,pack/unpack functions, as well as the powerful GD graphics library, these

How to solve floating-point arithmetic bugs in JS

  This article is mainly on the floating-point operator in JS solution to solve the problem, the need for friends can come to the reference, I hope to help you. Once the project used to find this code on the Internet before, but under certain

JS operation binary: LZ77 algorithm

JS operation binary System is very troublesome, and has not a good lossless compression tool to achieve the compression of plain text. So delve into a period of gzip, later found or only with LZ77 more easily implemented, Gzip Haffman compression

How the Web site shortening program is done

Recently Weibo is very hot, because of the word limit, there are a lot of web sites to shorten this service, such as Sina himself with their own sinaurl.cn, think of their own has also registered a very short domain name k6.hk for a long time, has

Java basics: Common matching regular expressions and instances

Regular Matching regular expressions for Chinese characters: [\U4E00-\U9FA5] Match Double-byte characters (including Chinese characters): [^\x00-\xff] Application: Computes the length of the string (a double-byte character length meter 2,ascii

jquery calculates the distance between the mouse and the specified element

pow

This example describes how jquery calculates the distance between the mouse and the specified elements. Share to everyone for your reference. The implementation methods are as follows: ? 1 2 3 4 5 6 7 8 9 10 11 12 13-14 (function ()

WPF and easing (i) N-time easing

If we want to make the animation effect as smooth as the real life movement, such as car start and stop there is always a process of acceleration or deceleration, then we need to study the "easing" The process of increasing speed, such as the start-

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