Remote-processing CAMBASIC Manual do Utilizador descarregar pdf (Página 110)

Commands - 77

MID$

String Function

SYNTAX: n$ = MID$(m$,p[,q])

PURPOSE: To return the requested part of a given string.

REMARK S: The function returns a string of length q characters from m$ beginning with the pth character. If q is

equal to zero, or p is greater than the length of m$, then MID$ returns a null string.

If q is omitted, then a string from position p to the end of m$ is returned.

RELATED: LEFT$, LEN, RIG HT$, INSTR, MID$ Statement

EXAMPLE: 10 A$ = "ABCDEFG"

20 PRINT MID$(A$,5,2)

RUN

ERROR: < Illegal argument> – if p or q is out of range

< Illegal argument> – if p = 0

< Data negative> – for p or q

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Remote-processing CAMBASIC Manual do Utilizador Página 110