Epson HX-20, Руководство по эксплуатации

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(You will see an error message on the screen if you press
now, after typing “NOW IS THE TIME FOR ALL GOOD MEN
TO COME TO THE AID OF THEIR PARTY.” Here’s why: Pres-
sing
tells the HX-20 that you have just completed a logical
line. The HX-20 is in “BASIC,“ so it examines your line to see if it is
a legitimate BASIC command. Since it can’t figure out what you’re
asking it to do, it displays an error message. You’ll learn more about
such error messages in the
BASIC Tutorial and Reference Manual.
But for now, ignore any BASIC error messages you encounter,
because you’re still trying to learn how to use the screen editor.)
When you work with BASIC or with an application program, the
HX-20 only pays attention to logical lines; it doesn’t care about
physical lines. Therefore, the screen editor makes it easy for you to
insert and delete characters within a logical line, but has no such
features for inserting and deleting within a physical line.
To change something you’ve typed, just move the cursor to the place
where you want to make a change, and type the text you desire.
When you
type over existing text in this way, you replace the old
text with the new text.
For example, let’s say you want to change the expression you had
typed, from “NOW IS THE TIME FOR ALL GOOD MEN TO
COME TO THE AID OF THEIR PARTY” to “NOW IS THE
TIME FOR ALL GOOD MEN TO COME TO THE AID OF
THEIR FRIENDS.‘*
To make this change, use the cursor keys to locate the cursor on
the “P” in “PARTY.” Then type “FRIENDS.” With those few
keystrokes, you have changed the logical line.
To delete some characters altogether, place the cursor to the right of
the character you wish to delete. Then press this key:
The character to the left of the cursor disappears, and the rest of
the logical line moves one space to the left, to close up the gap.
To delete a group of characters, place the cursor to the right of the
last character in the group, and press the key repeatedly (or
hold it down, thus making it repeat automatically). This will delete
the characters in the group, one at a time, from right to left. When
you’ve deleted the leftmost character, release the
What could be easier? The characters you wished to delete will be
gone, and there won’t be any gap in the logical line.
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