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| 1 | +#https://newdigitals.org/2024/01/23/basic-python-programming/#using-strings |
| 2 | +#Assigning a single-line string to a variable |
| 3 | +a = "Hi!" |
| 4 | +print(a) |
| 5 | +#Hi! |
| 6 | +#Assigning a multi-line string to a variable |
| 7 | +a = """Lorem ipsum dolor sit amet, |
| 8 | +consectetur adipiscing elit, |
| 9 | +sed do eiusmod tempor incididunt |
| 10 | +ut labore et dolore magna aliqua.""" |
| 11 | +print(a) |
| 12 | +#Lorem ipsum dolor sit amet, |
| 13 | +#consectetur adipiscing elit, |
| 14 | +#sed do eiusmod tempor incididunt |
| 15 | +#ut labore et dolore magna aliqua. |
| 16 | +#Loop through the letters in the word "banana": |
| 17 | +for x in "banana": |
| 18 | + print(x) |
| 19 | +#b |
| 20 | +#a |
| 21 | +#n |
| 22 | +#a |
| 23 | +#n |
| 24 | +#a |
| 25 | +#The len() function returns the length of a string |
| 26 | +a = "Hello, World!" |
| 27 | +print(len(a)) |
| 28 | +#13 |
| 29 | +#To check if a certain phrase or character is present in a string, we can use the keyword in: |
| 30 | +txt = "The best things in life are free!" |
| 31 | +print("free" in txt) |
| 32 | +#True |
| 33 | +#Check if "expensive" is NOT present in the following text |
| 34 | +txt = "The best things in life are free!" |
| 35 | +print("expensive" not in txt) |
| 36 | +#True |
| 37 | +#You can return a range of characters by using the slice syntax |
| 38 | +b = "Hello, World!" |
| 39 | +print(b[2:5]) |
| 40 | +#llo |
| 41 | +#Get the characters from the start to position 5 (not included): |
| 42 | +b = "Hello, World!" |
| 43 | +print(b[:5]) |
| 44 | +#Hello |
| 45 | +#Get the characters from position 2, and all the way to the end: |
| 46 | +b = "Hello, World!" |
| 47 | +print(b[2:]) |
| 48 | +#llo, World! |
| 49 | +#Use negative indexes to start the slice from the end of the string: |
| 50 | +#From: "o" in "World!" (position -5) |
| 51 | +#To, but not included: "d" in "World!" (position -2): |
| 52 | +b = "Hello, World!" |
| 53 | +print(b[-5:-2]) |
| 54 | +#orl |
| 55 | +#The upper() method returns the string in upper case: |
| 56 | +a = "Hello, World!" |
| 57 | +print(a.upper()) |
| 58 | +#HELLO, WORLD! |
| 59 | +#The lower() method returns the string in lower case: |
| 60 | +a = "Hello, World!" |
| 61 | +print(a.lower()) |
| 62 | +#hello, world! |
| 63 | +#The strip() method removes any whitespace from the beginning or the end: |
| 64 | +a = " Hello, World! " |
| 65 | +print(a.strip()) # returns "Hello, World!" |
| 66 | +#Hello, World! |
| 67 | +#The replace() method replaces a string with another string: |
| 68 | +a = "Hello, World!" |
| 69 | +print(a.replace("H", "J")) |
| 70 | +#Jello, World! |
| 71 | +#The split() method splits the string into substrings if it finds instances of the separator: |
| 72 | +a = "Hello, World!" |
| 73 | +print(a.split(",")) # returns ['Hello', ' World!'] |
| 74 | +#['Hello', ' World!'] |
| 75 | +#Merge variable a with variable b into variable c: |
| 76 | +a = "Hello" |
| 77 | +b = "World" |
| 78 | +c = a + b |
| 79 | +print(c) |
| 80 | +#HelloWorld |
| 81 | +#To add a space between them, add a " ": |
| 82 | +a = "Hello" |
| 83 | +b = "World" |
| 84 | +c = a + " " + b |
| 85 | +print(c) |
| 86 | +#Hello World |
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