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problem description after textView append an attributeString with the code, continue to edit the keyboard, the style cannot be restored related codes The code for button is as follows: let attributeText = NSMutableAttributedString(attributedSt...
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I keep the address of another variable in the dynamically allocated memory, and then print the dynamically allocated memory and the address of another variable. I understand that the address of base and p3 in group2 is the same, but why is buf in group...
you can add or modify data in mongodb by Synchronize to ES, but when you delete data, the deleted data is still saved in ES. data in mongodb: ES: ...
how to use js code in html to display hidden div in sequence it is better to have special effects ...
check, suppose that the user subscribes to my web site I need to authorize him to turn on the switch (because my site has voice transfer function) I find that the google chrome, safari installed on the ios does not have a way to turn on the switch. Wh...