? : ABBREVIATION FOR PRINT
You can save time and effort by substituting a question mark (?) for
PRINT. Try the next program line below:
70 ? "THAT RAN FROM DUSK UNTIL DAWN. "
RUN
LIST
The program runs the same with ? as with PRINT. The question mark
is just a convenient shortcut. For clarity, all the following PRINT
statements in this tutorial use the word PRINT, but you can substitute
a question mark.
LOGICAL LINE LENGTH
Sometimes the quotation marks contain too many characters to fit on
one or two lines. Make sure the sound is audible on your television or
monitor before you type the following sample:
80 PRINT "IT WOULDN'T RESPOND TO ESCAPE, BREAK, CONTROL,
OR LIST.. AND IT WAS STILL RUNNING WHEN I TURNED OFF THE
SWITCH."
When the cursor reaches the third line, a buzzer sounds. The buzzer
indicates when you are approaching the maximum length of an in-
struction line. An instruction line can be no longer than three screen
lines. This limit is called a "logical line." (You may wish to turn down
the volume now.)
SCREEN DISPLAY
Words are often broken in awkward places when the cursor reaches
the end of a line on the screen. Also, the spacing between words
when you type in the program lines is different from the word spacing
when the computer runs out the program. To avoid both of these prob-
lems, determine what you want each line to look like and type
separate PRINT statements for each line. Retype the sentence in line
80 so that it appears in a poem format:
80 PRINT "IT WOULDN'T RESPOND"
90 PRINT "TO ESCAPE, BREAK, CONTROL, OR LIST,"
100 PRINT "AND IT WAS STILL RUNNING"
110 PRINT "WHEN I TURNED OFF THE SWITCH.
RUN
LIST
39
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