Syntax
READ
{constant,}
variable_list
variable_list = variable |
array_element | string_element {, variable_list }
Description
Reads
data stored by the BASIC application with the DATA
command.
The elements of the variable_list must be integer
variables, elements of a string, or elements of arrays. Each element read,
will be filled from a 32bit value in the 4K space used to store the DATA
statements. All the DATA statements in the program behave as a single list.
After the last element of a DATA is read, the first element of the following DATA will be read.
The RESTORE statement resets the
next-element pointer to the start of the DATA. This allows the
user to alter the order in which the DATA are READ.
If the READ is followed by a constant, then the element will be
filled from the nth DATA element where n = constant.
Example
' Create an array of 5 integers and a string to hold the data.
DIM h(4)
DIM hs$(30)
' Set up to loop 5 times (for 5 numbers... check the data)
FOR read_data = 0 TO 4
' Read in an integer.
READ h(read_data)
' Display it.
PRINT "Number"; read_data;" = "; h(read_data)
NEXT
END
' Block of data.
DATA 3, 234, 4354, 23433, 87643
Differences from other BASICs
- Most classic BASICs contain this construct
- Does not exist in Visual BASIC
- PBASIC allows modifiers for size. In PBASIC the
first element always sets the offset into the data array. This is the
case in ARMbasic only if the first element is a constant.
See also
