I now have a provincial, municipal and regional three-level linkage using element s cascader cascade selection. The binding is bound through the Chinese name, but the value drop-down is also selected in the editor, but it is not displayed in the drop-d...
I am like this now. The project has a lot of databases, all under the same mysql server, and there is db,db2,db3 in main.php. Now there is a storage operation like this. Table A comes from db2,B table and comes from db3,. When using transactions, it is ...
use react + Flask to build a small website, generally read "in-depth understanding of Flask ". after using react, the backend template jinja and routing no longer need to be learned? ...
problem description the server belongs to Aliyun, windows 2008 R2 system. There is a public IP and private IP, on Aliyun. How to configure IP? in the start_gateway.php file the environmental background of the problems and what methods you have tried...
sql judges if exists to report an error when updating database data ifiu= "if exists (select food_rank from config_battle where food_rank= " + cb.getFood_rank () + ") " + update+ "else " + insert; update and insert are two separate sql statemen...
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