returned in case there is no argument or the argument is not a valid
这个框架类似苹果的 App Intents。在苹果的构思中，用户可以使唤 Siri 来操作各种 app 来实现功能，而底层实现方式就是通过 App Intents ——新一代 Siri 迟迟不能落地的前提下，App Intents 足以提供不错的效果。，推荐阅读WPS下载最新地址获取更多信息
"In-space manufacturing is something that is happening now," says Libby Jackson, head of space at the Science Museum.，详情可参考safew官方下载
Premium & FT Weekend Print
CUPERTINO, CALIFORNIA Apple today announced a new family of displays engineered to pair beautifully with Mac and meet the needs of everyone, from everyday users to the world’s top pros. The new Studio Display features a 12MP Center Stage camera, now with improved image quality and support for Desk View; a studio-quality three-microphone array; and an immersive six-speaker sound system with Spatial Audio. It also now includes powerful Thunderbolt 5 connectivity, providing more downstream connectivity for high-speed accessories or daisy-chaining displays. The all-new Studio Display XDR takes the pro display experience to the next level. Its 27-inch 5K Retina XDR display features an advanced mini-LED backlight with over 2,000 local dimming zones, up to 1000 nits of SDR brightness, and 2000 nits of peak HDR brightness, in addition to a wider color gamut, so content jumps off the screen with breathtaking contrast, vibrancy, and accuracy. With its 120Hz refresh rate, Studio Display XDR is even more responsive to content in motion, and Adaptive Sync dynamically adjusts frame rates for content like video playback or graphically intense games. Studio Display XDR offers the same advanced camera and audio system as Studio Display, as well as Thunderbolt 5 connectivity to simplify pro workflow setups. The new Studio Display with a tilt-adjustable stand starts at $1,599, and Studio Display XDR with a tilt- and height-adjustable stand starts at $3,299. Both are available in standard or nano-texture glass options, and can be pre-ordered starting tomorrow, March 4, with availability beginning Wednesday, March 11.