在真实环境中，System.currentTimeMillis 的分辨率可能会糟糕 ~10-100倍。

In reality, System.currentTimeMillis can have ~10-100 times worse resolution. Its Javadocs state

youdao

在真实环境中，System.currentTimeMillis 的分辨率可能会糟糕 ~10-100倍。

In reality, System.currentTimeMillis can have ~10-100 times worse resolution. Its Javadocs state

youdao