Source: Computational Materials Science, Volume 267
* @param {number} target 目的地位置（英里），更多细节参见safew官方版本下载
Whatever it happens to be, Nava is (so it seems to me) seeing it with a freshness of perception, a joyful richness of observation, that my 40-year-old eyes simply cannot equal.，更多细节参见heLLoword翻译官方下载
Web streams use a locking model to prevent multiple consumers from interleaving reads. When you call getReader(), the stream becomes locked. While locked, nothing else can read from the stream directly, pipe it, or even cancel it — only the code that is actually holding the reader can.