iec 62056

First, what is a businessA transaction is a sequence of operations that accesses a database, and the database application system accesses the database through a transaction set.　　The proper execution of a transaction causes the database to transition from one state to another state. Transactions must be subject to the ACID principles established by ISO/IEC. Acid is an abbreviated transaction of atomicity (atomicity), consistency (consistency), isolati

First, what is a businessA transaction is a sequence of operations that accesses a database, and the database application system accesses the database through a transaction set.　　The proper execution of a transaction causes the database to transition from one state to another state. Transactions must be subject to the ACID principles established by ISO/IEC. Acid is an abbreviated transaction of atomicity (atomicity), consistency (consistency), isolati

followed by netscape Navigator 3 (Netscape browser) published javascript 1.1 . Later as the competitor of Microsoft in the home of the ie3 added a named jscript (the name differs in order to avoid infringement) of the JavaScript implementation. At this point there are 3 different javascript version, ie jscript , Netscape javascript and scriptease The cenvi in the . There was no standard rule javascript . javascript was finally put on the agenda as the issue of different releases became

JavaScript introduction 1992 Nombas developed the embedded scripting language for C-minus-minus (c--), which was originally bound to Cenvi software, and renamed it Scriptease (the language that the client executes). Netscape (Netscape) received Nombas's philosophy, (Brendan Eich) developed a set of Netscape scripting languages in its Navigator livescript 2.0 product. Sun and Netscape were done together, and then renamed JavaScript. Microsoft then emulated a JavaScript clone cal

Universal Character Set (UCS) UCS is a standard character set developed by ISO 10646(or ISO/IEC 10646) standards.The UCS includes all other character sets (which contain the known language's characters).ISO/IEC 10646 defines a 31-bit character set (the first constant is 0, which takes up 4 bytes).Unicode (Universal code, International Code, Uniform Code, single code) Encoding method:Unicode enco

1. JS Introduction method2. Variables3. Code specification4. Constants and identifiers5. Data typeECMA (European Computer Manufacturing Association)The ECMA (European Computer Manufacturing Association) defines the ECMA-262 specification. The International Organization for Standardization (ISO/IEC) also adopted ECMAScript as the standard (iso/iec-16262). Since then, Web browsers have struggled (albeit with

First, what is a businessA transaction is a sequence of operations that accesses a database, and the database application system accesses the database through a transaction set.　　The proper execution of a transaction causes the database to transition from one state to another state. Transactions must be subject to the ACID principles established by ISO/IEC. Acid is an abbreviated transaction of atomicity (atomicity), consistency (consistency), isolati

common multimedia container format that is defined in the "ISO/IEC 14496-14" standard file and belongs to MPEG-4, which is "ISO/IEC 14496-12 (MPEG-4 parts ISO base Media file format) "as defined in the standard, which defines a common standard for media document architecture. MP4 is a more comprehensive container format, which is considered to be able to embed any form of data, a variety of encoded video,

Js First, JS overview 1.1 JS History 1992 Nombas developed the embedded scripting language for C-minus-minus (c--) (originally bundled in Cenvi software). Rename it scriptease. (The language that the client executes) Netscape (Netscape) received Nombas's philosophy, (Brendan Eich) developed a set of Netscape scripting languages in its Navigator livescript 2.0 product. Sun and Netscape are done together. And then the name is JavaScript. Micro

First, The history of JavaScript 1992 Nombas developed the embedded scripting language for C-minus-minus (c--) (originally bundled in Cenvi software). Rename it scriptease. (The language that the client executes) Netscape (Netscape) received Nombas's philosophy, (Brendan Eich) developed a set of Netscape scripting languages in its Navigator livescript 2.0 product. Sun and Netscape are done together. And then the name is JavaScript. Microsoft then emulated a JavaScript clone call

areas.About POSIXPOSIX represents a portable operating system interface (Portable Operating system Interface, abbreviated as POSIX), and the POSIX standard defines the interface standards that the operating system should provide for applications. is the generic term for the series of API standards that IEEE defines for software to run on a variety of UNIX operating systems, formally referred to as IEEE 1003, and the International standard name is ISO/IEC