the last picture is the correct answer. That (13) 192.168.10.0 swap 23 and (14) are allowed to be confused. ...
variables in a class public $id; public $group_id; public $parent_id; public $type; public $name; public $description; public $is_required; public $can_delete = 1 ; public $...
the user inserts the data and gets the self-growing id, $db- > insert_id. can accurate id? be obtained once concurrency occurs ...
the method of entering the library in service needs to be tested in the case of multithreading, and then two threads are opened to execute the service method in a loop, but there are a lot of problems, including the following situations. both threads...
a = [{id:1}, {id:2}, {id:3}] b = [{id:1}, {id:2}, {id:4}] how to calculate in b that b does not have in a ...
mysql error 2059 ...