Clears all characters from the cursor to the end of the line. That lets us make sure that when we delete and re-print a shorter input after that, any "leftover" text that we're not over-writing still gets properly cleared from the screen.
There’s also the 12MP TrueDepth camera on the front, which we didn’t have many complaints about, and don’t expect to disappoint on the iPhone 17e.
，这一点在新收录的资料中也有详细论述
Performance Degradation Over Time，更多细节参见新收录的资料
A function can return Result when the outer and inner operations can both independently fail, though this is rare and usually a sign you should restructure: