because I want to grab the location of the server want to know how to enable the user to open the server with the GPS function? whether it s a mobile phone or turn on when I turn on the shutter to access my network will ask whether I can get the loc...
the on-board system needs accurate positioning to calculate the mileage data relationship between the life and death of the car (whether it is abandoned or not) it is well known that there is a deviation of 5-10 meters in gps positioning. Now we can l...
does python start with 2 or 3? why? ...
The code is as follows: void F1 (void) { printf("Running f1. n"); } void f2 (void) { printf("Running f2. n"); } int main () { printf("Registering f1 and f2: "); if(atexit(f1)||atexit(f2)){ printf("failed. ...
bootstrap defaults to a media query for 1200px @media (min-width: 1200px) { .col-lg-12 { width: 100%; } ... ... ... } how can I rewrite it as 1367px? I appended it later, but it has no effect. Because I am using a public ...
the parameters required for the interface provided by the background are { name: aaa, url : aaa.img , id :0 } I took a look at the upload component of iview. It seems that the interface address is written down directly in an action. H...
such as now I want to design an online seat selection system but when users sign up, they can dynamically edit unreserved seats in the background how should I design it from the generation of seats to the final registration, seat selection and editing...