if (arr[j] key) {
2. 从个位开始，对每位进行计数排序（稳定排序），这一点在爱思助手下载最新版本中也有详细论述
iFi's new DAC is eight percent smaller than the previous GO Link and 29 percent lighter, approaching the size of Apple's USB-C to 3.5mm Headphone Jack dongle. The GO Link 2's built-in ESS Sabre DAC chipset is supposed to add "6dB of dynamic range between the loudest and quietest moments" and reduce distortion for clearer sound by up to 62 percent when compared to the original GO Link.，这一点在搜狗输入法2026中也有详细论述
a16z的报告里举了几个例子，把这个问题讲得很具体。投行分析师用Hebbia，几百份公开文件自动分析完，财务模型直接生成，以前要熬几个通宵做的事情，现在可以去睡觉了。医生用Abridge，它能实时记录医患对话，自动整理病历和后续跟进事项，医生看诊时不用再一边问话一边盯着屏幕敲字。还有做财务对账的Basis，跨系统自动核对试算表，原本需要人工反复比对的工作变成几分钟的事。