How to use the ESC/POS command to control printing for the pos58 ticket thermal printer
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How can I use the ESC/POS command to control the size of printed text for the pos58 ticket thermal printer?How can I control the text size of a pos58 ticket thermal printer?I know tha
How can I control the text size of a pos58 ticket thermal printer?I know that ESC/POS commands are not used.ASCII: ESC! NDecimal: 27 33 NHexadecimal: 1B 21 N
In C #, do I use the decimal notation (char) (27) + (char) (33) + (char) (n) to multiply the text and print it?Mainly to enlarge text printing. N does not know how much to get? Is it 48?
For
Purpose: compress the javascript size. Makes javascript Load faster.Usage:Input something under cmd;Cscript ESC. wsf-l 3-ow ../global. js global. jsThe above is a simple example: You can create a bat file and put it under the current directory.Cscript ESC. wsf-l compression level-ow .. /Original js files to be compressed to that directory1.Level 0: No compression
Purpose: compress the Javascript size. Makes JavaScript Load faster.
Usage:Input something under cmd;Cscript Esc. WSF-L 3-Ow ../global. js global. js
The above is a simple example: You can create a BAT file and put it under the current directory.
Cscript Esc. WSF-l compression level-ow .. /Original JS files to be compressed to that directory1.Level 0: no
PHP implementation of the formula verification Code and Chinese character Verification code example, PHP formula code example
In the development of PHP Web site, verification code can effectively protect our forms from malicious
This article mainly introduces the example of PHP implementation of the formula verification code and the Chinese character verification code. This article provides the implementation code directly. if you need it, refer to the PHP website development, the verification code
The idea and code example of using the iterator to print the spiral matrix in Python, And the python Matrix
Ideas
A spiral matrix refers to a spiral matrix with numbers increasing from the first line to the right and increasing downward,To the left, and to the up, so that the cycle.The spiral matrix is represented by a two-dimensional array. The coordinates (x, y) are (x axis and y axis ).The clockwise dire
* g + 0.11 * BU = (B-Y) * 0.493V = (R-Y) * 0.877In turn, the YUV formula for converting to RGB is as follows:R = Y + 1.14 VG = Y-0.39u- 0.58 VB = Y + 2.03uSample CodeThe following is an example of the conversion code from rgb24 to yv12 (yuv420) (C ++ ):Uint_8_t * psrc =; // This is RGB bit streamUint_8_t * yuv_image = new uint_8 [320*240*3/2]; // yuv420 bit streamInt I = 0, j = 0;Int width = 320; // width
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After several months of intermittent learning, I finally figured out a part of ICTCLAS source code, and tried to use JAVA to implement one based on the original author's intention. At present, the first step of Word Segmentation can be achieved, however, the processing and part-of-speech tagging of personal names, place names, and unregistered words have not yet been completely clarified. I wanted to share it with you early, but I was afraid
Java_io System Randomaccessfile Introduction, into the source code and example--20RandomAccessFile1, class features Introduction:File random access stream, care several features:1, he realized the interface is no longer inputstream, outputstream any one, but the realization of datainput, dataoutput. It was also destined that he could manipulate the Java base type, read it, write it, and most of the methods
This article shares a good PHP code class, followed by a complete invocation example, the need for friends, refer to the next.1,php Verification Code Class
Session_name = $name; $this-image_width = $width; $this-image_height = $height; $this-cod_length = $length; $this, mode = $mod; $this-Font_path = $font; $this-avrage_font_size = $av _font_size; $this-
, $result)) { return $result; } else { Return] does not match! "; } }
6. Regular expression of matching area zip code
Matching ZIP code rules:Six digits, first digit cannot be 0
/** * @param $pos string zip code * @return String result * /function Pregpos ($
("Dfgdgs");/set QRCode content Esc.addprintqrcode ();//print QRCode esc.addprintandlinefeed (); /* Print text */esc.addselectjustification (EscCommand.JUSTIFICATION.CENTER);//set to print left-aligned esc.addtext ("completed!\r\n");
Print end//Open Cash Box Esc.addgenerateplus (LabelCommand.FOOT.F5, (byte) 255, (byte) 255);
Esc.addprintandfeedlines ((byte) 8);
vector
It's a good thing to print something out.
The above is a small set to introduce the Android mobile phone through Bluetooth to
JS example code for shielding and changing the button Effect
This article mainly describes the sample code for JS to shield the key effect and change the key effect. You can refer to the Code for help.
Function key F1-F2: 112-123
A-B: 65-90
Number key: 0--57
ESC: 27
Ret
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