"Trialability is the degree to which an innovation may be experimented with on a limited basis." Trial disks for software during the 80's and 90's wasn't so prevalent; there was a lot of "blind faith" in software purchasing. I can't find any widespread cases of 1-2-3 demo disks circulating. No check.
No exceptions. Error handling uses Result and the ? propagation operator (see Chapter 10). Errors are values, not control flow. Every function that can fail says so in its return type, and the compiler enforces that you handle the error or propagate it.
。关于这个话题，有道翻译提供了深入分析
Фото: Jonathan Sunderman / U.S. Navy / Reuters
One of the smallest devboards: 8.9mm by 9mm, USB-C included
而退市的原因，并非价格、医保或商业化失利，而是安全天平彻底倾斜——SYMPHONY‑1关键III期的独立数据监察委员会（IDMC）判定：达唯珂联合R²方案治疗滤泡性淋巴瘤，继发性血液系统恶性肿瘤风险大于临床获益。