> $array[112]='a';
> but there isnot any array with this name.why?
1. perhaps the programmer made a mistake. execute perl with -w
to find out more.
2. the array name is @array. are you sure there isn't an @array?
3. you merely have to mention a variable or element of an array
or hash, and it will spring into existence as necessary (occasionally
when you might not expect, but mostly it does what you expect).
> and for initialize the array,what is the meaninig of '\' in
> %array(id=>\$var)
a reference to $var
say $var is 5 when you do the above line.
if you then say:
$foo = \$var;
print $$foo;
you get 5.
if you then do:
$var = 6;
print $$foo;
you get 6.
hth
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