Paper 2 revision #3

Paper 2 revision #3

1. Usually refers to if statements.

2. String manipulation

   • Write a code that takes the first 3 letters of someones first name and the first three letters of their last name.
     • a = input("Enter your first name") b = input("Enter your surname") c = (a[:3]) d = (b[:3]) print(c+d)

3. Usually used when there are multiple types of answer to a question.

4. If, elif, else.

5. Writing/reading to a file.

   • "r" is reading from a file,
   • "w" means writing to a file.
   • "a" means adding to the end of a textfile.
   • open("data.txt" , "w")
     • This means creating a file called data.txt . This allows us to create a file that does not exist.
   • We can also use "x" to create a file. This will also return an error if the file already exists.