20ms是多少초？
20ms = 0.02초
把0.02초四舍五入成0초会差100%。这个数值下最好保留小数。
反过来，20초是多少ms？
20초 = 20,000ms
计算公式: 초 = ms × 0.001
该数值前后的 ms → 초
2 ms0.002초
4 ms0.004초
6 ms0.006초
8 ms0.008초
10 ms0.01초
12 ms0.012초
14 ms0.014초
16 ms0.016초
18 ms0.018초
20 ms0.02초
22 ms0.022초
24 ms0.024초
26 ms0.026초
28 ms0.028초
30 ms0.03초
32 ms0.032초
34 ms0.034초
36 ms0.036초
38 ms0.038초
40 ms0.04초