explain invoice verification process

Graduation design did a simple research under the Verification Code identification problem, and no in-depth research, design graphics images of things, water is very deep, neural network, machine learning, are difficult. This time it was only analyzed in the traditional way.This year's work has not been tidied up, a few days ago a guy wanted this demo to see, I put a bunch of things collected, packed to him, he was too busy, I will tidy up the record.

First, IntroductionInvoice validation is part of the material Management (MM) system. It provides a connection between the Material Management Section and the financial accounting, cost control and asset Management sections.The invoice verification for the material Management module serves the following purposes:It completes the whole process of material procurem

PHP generates a variety of common verification code and AJAX verification process, PHP Verification code AJAX Verification Verification codes are important in Web applications and are often used to prevent users from maliciously

, then actionservlet sends the request to the action for processing.4) Whether to verify. If verification is required, the validate method of actionform is called. If verification fails, the system jumps to input. If verification succeeds, the system continues.5) Action obtains data from actionform and calls the Business Method in the JavaBean (model) to

Verification codes are important in Web applications and are often used to prevent users from maliciously submitting forms, such as malicious registration and login, malicious forum flooding, and so on. This article will explain the use of PHP to generate a variety of common verification code including digital verification