✔ 最佳答案
順便寫
(name, symbol , multiple)
peta, P, x10^15
tera, T, x10^12
giga, G, x10^9
mega, G, x10^6
kilo, k, x10^3
hecto, h, x10^2
deca, da, x10^1
deci, d, x10^-1
centi, c, x10^-2
milli, m, x10^-3
micro, μ, x10^-6
nano, n, x10^-9
pico, p, x10^-12
femto, f, x10^-15
所以ms是millisecond
1 ms = 1x10^-3 = 0.001
ns是nanosecond
1 ns = 1x10^-9 = 0.000000001