func4.sub

来自「android-w.song.android.widget」· SUB 代码 · 共 40 行

# test FUNCNEST functionality -- bash-4.2
FUNCNEST=100

foo()
{
	(( f++ ))
	if (( f > 200 )); then
		return 7
	fi
	foo
}

f=0
foo
echo $?
echo after: f = $f

f=0
foo
echo $?
echo after: f = $f

f=0
FUNCNEST=0
foo
echo $?
echo after FUNCNEST reset: f = $f

f=0
unset FUNCNEST
foo
echo $?
echo after FUNCNEST unset: f = $f

FUNCNEST=20
f=$(( FUNCNEST - 2 ))
foo
echo $?
echo after FUNCNEST assign: f = $f