[...]int{4, 9, 3, 1, 5}
[4, 5, 6, 7]
[4]int{21, 41}
{4, 7, 3, 1, 9}
count
len
size
length
make
create
slice
cap
add
append
extend
join
foreach
range
each
all
ASCII
UTF-8
UCS-2
ISO 8859-1
\z
\n
/b
%b
$
@
:=
bool
rune
byte
char
:X:
"\x65"
'\t'
[S]