as mentioned in the question, debug the mobile phone screen with Synchronize on PC by using the method of "android phone + Chrome for real machine debugging". The aim is to solve unique problems on mobile phones.

after use, on the PC side, the changed properties will not take effect? Is it all like this? what"s the point?

General steps:
1. Turn on the USE debug mode of the phone and connect the USB data cable;
2. Enter chrome://inspect/;
3 for the tab, of the newly opened chrome. On the open page, click inspect to pop up chrome debugging tools