1, Zbar ReadHttp://zbar.sourceforge.net/download.htmlZbar is a open source software suite for reading bar codes from various sources, such as video streams, image files and raw intensity sensors. It supports many popular symbologies (types of bar codes) including Ean-13/upc-a, UPC-E, EAN-8, Code 12 8, Code interleaved, 2 of 5 and QR Code.2, Zxingqrcodehttp://zarko-gajic.iz.hr/firemonkey-mobile-android-ios-q
Introduction:
Zbarsdk is an open-source SDK that can be downloaded from here to the source code, which implements the identification and reading of various bar codes, including EAN-13/UPC-A, UPC-E, EAN-8, code 128, code 39, interleaved 2 of 5 and QR code.
Help document: http://zbar.sourceforge.net/iphone/sdkdoc/index.html Example Analysis:
1. import and use the SDK
Import the zbarsdk file and introdu
code parsing.
Supports 1D/2D barcode types
Code 39, Code 93, Code 128, Codabar, Interleaved 2 of 5, EAN-8, EAN-13, UPC-A, Industrial 2 of 5QRCodeDataMatrix2017417
Supported image types
BMP, JPEG, PNG, GIF, TIFF, PDF
Running Environment
Windows, Linux MacNode v5.5.0
Node. js bar code Extension
The Node. js extension uses the shared object of Dynamic Links written in C/C ++. If you have never touched on thi
Wildcard:WildcardDescriptionExample%Any string containing zero or more characters.WHERE title LIKE '% computer %' searches for all titles containing the word computer in any location of the title._ (Underline)Any single character.WHERE au_fname LIKE '_ ean' searches for the names of all four letters ending with ean (such as Dean and Sean ).[]Specifies any single character in the range ([a-f]
The Barcode. NET Control Combo Barcode Control is a. NET widget that provides 6 different types of barcodes, which can be used to generate currently used one-dimensional barcodes, postal code barcodes, PDF417 barcodes, Datamatrix, Aztec, QRCode, Maxicode, and can save barcodes for different image file formats, you can use PrintDocument controls for barcode printing.Specific features:
1-D Barcode: Code, Code, gs1-128, ITF-14, SCC-14, SSCC-18, GS1 DataBar, GS1 DataBar Composite,
The Barcode. NET Control Barcode Control is a flexible and powerful one. NET control that can be used for your. NET application to create professional barcode images, and you can save barcodes for different image file formats, and you can use the PrintDocument controls provided by the. NET Framework to print barcodes.Specific features:Support for over 90 barcodes including:One-dimensional barcode:Code, code, gs1-128, ITF-14, SCC-14, SSCC-18, GS1 DataBar, GS1 DataBar Composite,
Zxing is an open source multi-format 1d/2d barcode image Processing Library, implemented in Java. The point is to use the built-in camera on the phone to scan and decode the barcode on the device without communicating with the server. However, the project can also be used to encode and decode barcodes on desktops and servers. These formats are currently supported:
Upc-a and UPC-E
EAN-8 and
Vintasoftbarcode.net Library Barcode Recognition control is a perfect barcode read-write. NET library that supports reading barcodes from digital images or generating digital picture barcodes.Specific features:
Support Multithreading
Support for creating barcode pictures
Supports specifying size and resolution for generated barcodes
has many options to control bar code creation
Supports reading barcodes from picture objects, picture files, and PDF documents
Programmi
Today we are going to talk about the most commonly used technology in mobile field--two-dimensional code. Now the streets, major sites have two-dimensional code traces, whether it is iOS, Android, WP has related support software. Before I wanted to know how the two-dimensional code is working, recently because the work needs to use the relevant technology, so do a preliminary understanding. Today is mainly about how to use the Zxing library to generate and identify two-dimensional code. This art
Objective
This article uses the two-dimensional code generation code is Google open Source Barcode image processing library completed, C # version of the code can go to https://code.google.com/p/zxing/downloads/list download compression package.
Up to date, the latest version is 2.2, providing support for the following coding formats:
Upc-a and UPC-E
EAN-8 and EAN-13
Code 39
Code 93
Code 128
QR Code
family while striving for his education, and anyway, he became one of the most important mathematicians of the 19th century. Although he had considered a priest, he eventually decided to teach, and soon opened his own school.
when he was preparing his lessons, Boolean was dissatisfied with the math textbook and decided to read the papers of the great mathematician. In reading the great French mathematician Lagrange's paper, Boolean has a new discovery in the variational approach. The Variation
Note: This article was first published on 2017-09-22.
Hyperledger source code Analysis of Fabric introduction
The Chaincode is the user chaincode,ucc, which is important for application developers, and it provides state processing logic based on the blockchain distributed ledger, which can be used to develop a variety of complex applications.
Hyperledger Fabric, Chaincode runs in the Docker container by default. Peer creates and launches the Chainco
, User_cons_columns UCC WHERE uc.table_name = ucc.table_name and Uc.constraint_name = ucc.constraint_name and ucc.table_name = ' ORDER_STAT US2 ';--Rename table rename Order_status2 to Order_state; RENAME Order_state to order_status2;--adding comments to a table-comments help to remember the purpose of the table or column comment on table order_status2 is ' Order_status2 stores the S Tate of an order '; COMMENT on COLUMN order_status2.last_modified is
--oracle See all of the user's table names, table comments, field names, field comments, empty, field type SELECT DISTINCT table_column.*, table_nallable. Data_type, table_nallable. NULLABLE from (SELECT DISTINCT Utc.table_name table_name, utc.comments table_comments, Ucc.column_name column_name, ucc.comments column_comments from User_tab _comments UTC, User_col_comments UCC where utc.table_name = Ucc.table_name and utc.table_na
--oracle See all the user's table names, table gaze, field name, field gaze, is empty, field type SELECT DISTINCT table_column.*, table_nallable. Data_type, table_nallable. NULLABLE from (SELECT DISTINCT Utc.table_name table_name, utc.comments table_comments, Ucc.column_name column_name, ucc.comments column_comments from User_tab _comments UTC, User_col_comments UCC where utc.table_name = Ucc.table_name and utc.table_name not li
/images/https-8.png "alt=" https site "height=" 331 "width=" 594 "/ >In addition, UCC (Unified Communications Certificate, Unified Communications Certificate) supports a single certificate to match multiple sites simultaneously, which can be a completely different domain name. SNI (server name indicates, server named indication) allows multiple certificates to be installed on more than one domain name on an IP address. Server side, Apache and Nginx su
. If you are replacing webserver recommends that you use the easy-to-dimensional certificate format conversion tool, you must export the certificate in a different format, and you do not need to re-purchase a new certificate.For example, the practice of IIS is to generate a. pfx file that can be transferred and password-protected. By passing this file on to another server, you will be able to continue using the original SSL certificate.Misunderstanding five: HTTPS sites must have exclusive IP ad
=" https site "src=" http://www.evtrust.com/faq/images/https-8.png "/ >In addition, UCC (Unified Communications Certificate, Unified Communications Certificate) supports a single certificate to match multiple sites simultaneously, which can be a completely different domain name. SNI (server name indicates, server named indication) allows multiple certificates to be installed on more than one domain name on an IP address. Server side, Apache and Nginx
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