Radio Shack TRS-80 Model 100 Basic Manual page 87

Basic language lab
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Experiment #7 Changing a Phrase
It
is possible to move a word or even a phrase from one place in your program to
another with the Editor. This can be very useful when you want to add a line, or a
portion of a line to another line.
List the last program to confirm that it is:
10 INPUT "NUMBER"; N
20 IF N=0 THEN GOTO 60
30 AV = AV
+
N
£10 CT = CT
+
1
50 GOTO 10
60 PRINT "AVERAGE IS"; AV/CT
The statement in line 40 will be placed in line 20, and line 40 eliminated. The revised
program will be as follows:
10 INPUT "NUMBER"; N
20 IF N=0 THEN GOTO 60 ELSE CT = CT
+
1
30 AV = AV
+
N
50 GOTO 10
60 PRINT "AVERAGE IS"; AV/CT
Enter the EDIT command.
The program will be displayed as:
10 INPUT "NUMBER";
N~
20 IF N
=
0
THEN GOTO
604
31~~
t;V "'" l'lV +
l"i·~
'+0 CT ::::: CT -+ 1<4
::~i(21
GOfO
:l
6~
PRIN'r IIAVERA(3E IS
1i
;
AV/
First the word ELSE will be added to line 20. Position the cursor in line 20 over the
carriage return character. Line 20 should appear as:
20 IF N
=
(2)
THEN GOTO
6~~
The cursor is now positioned for the insertion of the word ELSE. Type a space and
then the word ELSE. Line 20 should appear as
20 IF N
=
(2)
THEN GOT
a
60 ELSE.
Next, the statement in line 40 must be inserted after the word ELSE in line 20. This is
accomplished as follows: Position the cursor in line 40 as follows
' " cr
+.
:l
81

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