Real World Haskell Study notes 02

Data

• List
  Like an array in C, you can only save data of the same type.
  
  Two basic operations + + and:, + + for connecting two lists of course two list values must be of the same type: cons, used to construct the list, the first element must be a value, cannot be a list

• String
  
  You can see that the top and bottom results are identical, "denotes characters," "denotes strings, and C uses a pointer array to represent strings, and Haskell's string is a list of characters, so all operations of the list can be used on strings

Type

• Haskell will do the analogy
  
  : Set +t can display the type of output result, using: unset +t can turn off the output type: Type also has the same effect

Real World Haskell Study notes 02