Skip to main content

Python Strings

String Literals

String literals in python are surrounded by either single quotation marks, or double quotation marks.
'hello' is the same as "hello".
Strings can be output to screen using the print function. For example: print("hello").
Like many other popular programming languages, strings in Python are arrays of bytes representing unicode characters. However, Python does not have a character data type, a single character is simply a string with a length of 1. Square brackets can be used to access elements of the string.

Example1

Get the character at position 1:
a = "hello"
print(a[1])

Output

e

Example

Substring. Get the characters from position 2 to position 5:
b = "world"
print(b[2:5])

Output

rld

Example

The len() method returns the length of a string:
a = "Hello, World!"
print(len(a))

Output

13

Comments

Popular posts from this blog

SQL Commands

SQL Commands SQL Commands  are mainly classified into four types, which are DDL command, DML command, TCL command and DCL command. SQL is mainly divided into four sub language Data Definition Language(DDL) Data Manipulation Language(DML) Transaction Control Language(TCL) Data Control Language(DCL) Only for remember You can easily remember all these SQL command like below; DDL Commands:  "dr. cat" d-drop, r-remane, c-create, a-alter, t-truncate. DML Commands:  "sudi". s-select, u-update, d-delete, i-insert. TCL Commands:  These commands are related to transaction, commands are: Commit, Rollback, Savepoint

Python - Function

Define Function in Python Function is block of codes. Python provide built-in and user define both types of function. Built-in function User defined function Built-in function This type of functions are pre-defined, you can directly use in your program. For example  print function is used for display message on screen or console. Print hello world in python a = "Hello World!" print a User defined function This type of functions are defined by programmer. According to your requirement you can defined you function name and it's functionality. In python you can define any function by using  def keyword. Syntax for define function in python def function_name ( parameter ) function body Define function in python def my_function(fname): print(fname + " Refsnes") my_function ("Emil") my_function ("Tobias") my_function ("Linus") Output Emil Refsnes Tobias Refsnes Linus Refsnes Explanation

Frames

A framed page is actually made up of multiple HTML pages. There is one HTML document that describes how to break up the single browser window into multiple windowpanes. Each windowpane is filled with an HTML document. Frame Page Architecture §   A <FRAMESET> element is placed in the html document before the <BODY> element. The <FRAMESET> describes the amount of screen real estate given to each windowpane by dividing the screen into ROWS or COLS . §   The <FRAMESET> will then contain <FRAME> elements, one per division of the browser window. §   Note: Because there is no BODY container, FRAMESET pages can't have background images and background colors associated with them. Frame Page Architecture <HTML> <HEAD> <TITLE> Framed Page </TITLE> <FRAMeSET COLS=“23%,77%”> <FRAME SRC=“Doc1.html”> <FRAME SRC=“Doc2.html”> </FRAMeSET > </HEAD> </HTML>