0x80000000, which is the minimum value of shaping, so why 0-0x80000000 or 0x80000000? how exactly is the symbol bit calculated ...
getBulkProperties ...
added a required field for form validation in el-form, but click the save button when the form is empty, and the error Cannot read property validate of undefined " is reported below. <el-dialog title="" :visible.sync="dialogAdd&qu...
In the company s project, as the response of iterating some operations becomes slower and slower, the slowest time an operation can have is more than 550ms . want to optimize it, but Mengxin doesn t know exactly where to start. I also want to ask ...
problem description there are two tables in the database, namely a and b , with the following structure: 2created_at2 : the previous attempt is to use MySQL s UNION to merge the data of the two tables, then as a subquery, and finally grou...
I set up a kafka service in the virtual machine of my computer and use the Java client to access it locally. Now if the service on the virtual machine is turned off by me, my local code will not be able to push messages to kafka and will report a timeou...