Which is exactly the same code as for the previous implementation. Things get interesting when you start looking at the user-declared constructor case:
Local road conditions, traffic patterns, and edge cases are all analyzed and mapped out so that the autonomous vehicles are prepared for the location. After months of testing, Waymo will start testing the driverless version of the service. If all goes well, this will be followed by launching the full Waymo experience — where you hail a driverless car on the Waymo app — in the city.
。关于这个话题，新收录的资料提供了深入分析
}try-catch does not change your function’s return type. It’s a local error-handling boundary — it consumes the error instead of propagating it. If you need the function to still return Result, use ? outside the try block or return explicitly from within catch:。关于这个话题，新收录的资料提供了深入分析
// 易错点3：忘记stack.length判断 → 访问stack[-1]会报错