PC Magazine also felt that HAL is a bit of a kludge. Charles Petzold wrote in his review, "Is HAL really a natural-language interface for 1-2-3? Is it useful? Will it revolutionize the computer industry? Are menus dead? My answers are: Not really. Often. Give me a break. No way."
// Check for BYOB request FIRST。关于这个话题，新收录的资料提供了深入分析
if (!udev_mode)，详情可参考新收录的资料
Result, match on result, ok() / err()
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