print multiple variables python

Create multiple variables with a Python loop, such as creating a1=, a2=, a3=, a4=, a5=Can be done with Python's built-in function localsLocals is a built-in function of Python, and he can access local and global variables in a dictionary way.Python uses namespaces to record

variable Assignment: variable assignment does not require a declaration type, each variable must be assigned before it is used, and the variable will not be created until the variable is assigned. Multiple variable assignment: a=b=c=1 a,b,c value is 1Specify multiple variables A, b, C = 1, 2 for multiple objects, "John

the string, so the string ' abc ' only a,b,c these 3 characters. If ' itself is also a character, it can be enclosed in '.What if the inside of a string contains both ' and ' contains '? You can use the escape character \ To identify, for example:' i\ ' m \ "Ok\"! 'The string content represented is:I ' m "OK"!The escape character \ can escape many characters, such as \ n for newline, \ t for tabs, and the character \ itself to escape, so \ \ means the character is \, you can

Variables (variable) are a very important concept in the Python language. The main function of a variable is to give a name to a value in a Python program. Similar to "Zhang San", "John Doe", "King two leper" the same name, easy to remember.?? In the Python language, the declaration of a variable needs to be assigned a

does Python support multiple inheritance? Python Development Learninginheritance is an important way of object-oriented programming, and through inheritance, subclasses can extend the functionality of the parent class. Python also has this feature, and in addition, Python ca

' age =100def__init__ (Self,address,sex): self.address=address Self.sex=sexprint (' Myname isparent ') defget_name (self): returnself.namedefget_age (self): returnself.ageclasschild (parent):child_name= "Child" def__init__ (self,address,sex): super (child,self) =__init__ (address,sex) print (' mynameis{0} '. Format (self.name)) defhello (self): print (' hello{0} '. Format (self.name)) def Get_name (self):

VariableWhat is a variableThe so-called variable, refers to the program in the process of the need to use the intermediate results, the variable is defined, will occupy a piece of memory open space address, through the memory space to ensure the uniqueness of the same time.Print (ID. __doc__ is guaranteed to be unique among simultaneously existing objects. ( CPython uses the object's memory address.)Naming rules for variables1) A variable can be any combination of uppercase and lowercase lette

# floating-point name = "John" # string print counterprint mi Lesprint Name In the above example, 100,1000.0 and "John" are assigned to the COUNTER,MILES,NAME variable respectively.Executing the above program will output the following results: 1001000.0John Assigning values to multiple variablesPython allows you to assign values to multiple

I. What is a variableVariables are common equations in previously learned mathematics, x = 3 (x is a variable, 3 is a variable value), in programming, the variable can be not only mathematical, but also arbitrary data typetwo. Naming rules for variablesThe variable name must be a combination of English case, number and _, cannot start with a number, cannot be a keywordA ? _name ? Atest1 ? 1a ?So, how do you see the keywords in

the original string. The original string completely ignores all escape characters and prints out all the backslashes in the string. >>> print (R ' s is Carol\ 's cat.)That's carol\ ' s cat. 19. Delete Blank: Method Rstrip () right Lstrip () left strip () on both sides syntax error: An error that is encountered from time to time, in a string enclosed in single quotation marks, which causes an error if it contains an apostrophe. Do

-a" relationship. How can this puzzle be broken?Different languages give a different approach, let's look at Java first. Java provides interface interface functionality to implement multiple inheritance :class Vehicle {} public interface flyable { class Flyableimpl implements flyable {public void FL Y () { System.out.println ("I am Flying"); class airplane extends Vehicle implements flyable { private flyable; Public airplane (

follows: Return a, B, c Instance The code is as follows: Def func (a = 1, B = 2 ):Return a, B Print func (a = 3) Output The code is as follows: (3, 2) Embedded functions and closures Format The code is as follows: Def foo () # External functionDef bar () # embedded functions........ If an embedded function references a variable of an external function (including an external function parameter) and the referenced variable is called a free varia

) If Len (person_list) = = 0: Return ' No one Knows ' person = person_list.pop (0) if person = = ' Linhaifeng ': Return '%s ' said: I know, the old boy is in Shahe Tak Commercial building, under the subway is '% person Print (' Hi-man [%s], dare to ask where the road is '% person ') Print ('%s ' replied: "I don't know, but read your eyes to the pig, you wait, I help you ask%s ..

") print ("b =", b) In Python 2.x and 3.x you will find that their results are different: 2.x:a = Trueb = True 3.x:a = Falseb = True What is this for? Since the exec in 3.x is a function of the statement, the variables in the function are local by default, which means The two A that you see is two different variables