Key - Casio FX-730P Owner's Manual

6-2 Program Commands
KEY$
®
Function:
Enters one character from the keyboard.
Explanation:
1) Accepts the input of only one character from the keyboard.
2) Numerals, alphabetical letters and symbols can be input.
3) The data entered will be in single character form.
4) Null will occur when there is no key input.
5) Since "?" is not displayed and input waiting also does not occur, KEY$ is
usually used in combination with an IF statement.
*KEY$ can be abbreviated as KEY.
Example:
1 0
20
30
40
50
60
70
80
PR I NT''BEEP";
A$=KEY$
IF A$="0"THEN BEEP
IF A$="1"THEN BEEP
IF
A$="E ''THEN 70
GOTO 20
PR I NT: PR I NT" END''
END
Repeated until the (I] key
is pressed.
*A low sound will be generated when the
~
key is pressed and a high sound
will be generated when the
IIJ
key is pressed. "END" will be displayed and the
program will be terminated when the
w
key is pressed.
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