nums[i] = n * n
市民小心翼翼地走在冰面上，冰面上坑坑洼洼净是冰碴儿。
，更多细节参见WPS官方版本下载
strict.writer.write(chunk3); // ok (queued in pending)
The trade-off is performance. Every syscall goes through user-space interception, which adds overhead. I/O-heavy workloads feel this the most. For short-lived code execution like scripts and tests, it is usually fine, but for sustained high-throughput I/O, it can matter.
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