an OS systems security is at a high risk to hackers so the company can update the OS to improve security
Answer:
A class is basically a scope inside which various code (especially function definitions) is executed, and the locals to this scope become attributes of the class, and of any objects constructed by this class.
Python is an object-oriented programming language, which means it manipulates programming constructs called objects. You can think of an object as a single data structure that contains data as well as functions; functions of objects are called methods. For example, any time you call len("Eric"). Python is checking to see whether the string object you passed it has a length, and if it does, it returns the value associated with that attribute. When you call my_dict.items(). Python checks to see if my_dict has an items() method (which all dictionaries have) and executes that method if it finds it.
But what makes "Eric" a string and my_dict a dictionary? The fact that they're instances of the str and dict classes, respectively. In other words,a class is just a way of organizing and producing objects with similar attributes and methods.
we will write year in column B and column c respectively
2017 and 2018
then we will add months of year from January to December in the cells range from A2 to A13
then we will choose cell g5 and will write the diffrence formula
g5=attendance of 2018 - attendance of 2017"
we put "=" sign to put an formula in excel
then finally we will use fill handle and drag it from g6 to g12
to copy the difference formula
look at attached file
