var1.tests

busybox1.10.2,最新的busybox

# check that first assignment has proper effect on second one

(
a=a A=$a
echo a=$a A=$A
)
(a=a A=$a; echo a=$a A=$A)
(a=a A=$a echo a=$a A=$A)
(a=a A=$a /bin/echo a=$a A=$A)

f() { echo a=$a A=$A; }

(a=a A=$a f)
(a=a A=$a; f)