The INPUT
provides a standard way of entering information into one or more variables.
There are two possible formats for this instruction.
The first require that the programmer enters a list of variables directly as a list.
Each variable must be separated by a comma. A question mark will be automatically displayed
at the current cursor position.
The second needs a string as the first parameter. The string will be used as a prompt
before entering information. When a semicolon (;
) is used after the text output to
the user, a question mark (?
) is added to the output. When a comma (,
)
is used, no question mark is added.
When you execute one of these commands, ugBASIC will wait to enter the required
information from the keyboard. Each variable must be matched by a single value from the user.
These values must be of the same type as the original variables, and they should
be separated by commas.
If a string is specified (e.g., name$
), anything the user
enters before pressing the 'return' key will be accepted. If a numeric variable
(e.g., 'age') is specified, the user must enter a number. If any non-numeric key
is entered, the value 0 will be returned.
The optional semi-colon ;
at the end the variables list specifies that the
text cursor will not be affected by the INPUT
instruction, and it will retain its
original position after the data has been entered, instead of moving to the next line,
following the enter key.
Note that the separator character can be changed by using the DEFINE INPUT SEPARATOR
command, by giving the ASCII code value to use instead of the default (comma). Moreover,
the size of the input buffer can be changed using the DEFINE INPUT SIZE
instruction.
Finally, the character used as cursor can be changed using the DEFINE INPUT CURSOR
instruction.
INPUT var1 [, var2 [, ..]] [;] INPUT [prompt;] [var1] [, var2 [, ..]] [;] INPUT [prompt,] [var1] [, var2 [, ..]] [;]
Join BASIC 10Liner Contest with ugBASIC!
An interesting competition is held at the beginning of each year: the
BASIC 10Liner Contest.
It is possible to use ugBASIC to participate in the next
"BASIC10Liner" competition, in the following categories:
INPUT ↔ Ip
If you have found a problem with this keyword, if you think there is a bug or, more
simply, you would like it to be improved, open an issue for this example on GitHub.
Thank you!
open an issue
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