Pack and unpack are self-made binary "databases" and packunpack. Pack, unpack homemade binary "database", packunpack introduction pack, unpack function, if not touched socket, this may be unfamiliar, these two functions are used as pack for socket
refer to a set of function pack,unpack before looking at the following example. Any language with socket operation has a function dedicated to the package, PHP is no exception of course this set of functions is not just a package.Here's a quick
Function Name
Pack
Call syntax
Formatstr = pack (packformat, list );
Explanation
Converts a list or array to a simple variable in the format used by programming languages such as the
The following code {code...} is available ...} the results (& amp; lt; typeclassobj & amp; gt;, & amp; lt; typeinstance & amp; gt;) obtained by Python2.7.11Python3.5.1 in python2 are two python versions respectively ;) a is a class object, and a1 is
Struct in python is mainly used to process C-structure data. it is first converted to a Python string type during reading, and then to a Python structured type, such as a tuple ~. Generally, the input channel comes from the binary stream of a file
In python, the struct. pack () and struct. unpack () functions, structpackunpack
Struct in python is mainly used to process C-structure data. It is first converted to a Python string type during reading, and then to a Python structured type, such as
Http://android-dls.com/wiki/index.php? Title = HOWTO: _ unpack % 2c_edit % 2c_and_re-pack_boot_imagesHowto: unpack, edit, and re-pack boot images
Several people have already figured out the details on their own, but I have gotten requests to do a
EG1:>>>a,b= (a)Traceback (most recent):File "", line 1,in Valueerror:too Many values to unpack (expected 2)Error reason: When a tuple value is assigned to a tuple variable, the number of variables is not sufficientCan be changed to a,b,c= (+/-) or
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