Strings

• Strings are vectors of characters

• access with char function

> (setf string1 "abc")

"abc"

> (aref string1 1)

#\b

> (char string1 1)

#\b

> (char string1 0)

#\a

> (setf (char string1 2) #\Z)

#\Z

> string1

"abZ"

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