python_ Download middleware of crawler 21 Scrapy framework
catalogue
Downloader Middleware
1, process_request(self, request, spider)
2, process_response(self, request, response, spider)
3, Random request header Middleware
setting.py
middlewares.py
httpbin.py
4, ip proxy pool Middleware
1. Purchasing agent
2. Using ip proxy pool
3. Exclusive agent pool
Downloader Middleware
Downloader ...
Posted by Tjorriemorrie on Tue, 01 Feb 2022 09:16:35 +0100
Take you to a quick start AXI4 bus -- AXI4 Lite chapter -- Xilinx AXI4 Lite interface IP source code simulation analysis
Write in front
In AXIS, we packaged the IP of two axi4 stream interfaces (one master and one slave)( Take you to a quick start AXI4 bus -- AXI4 stream (2) -- Xilinx AXI4 stream interface IP source code simulation analysis ), the two IPS are simulated and analyzed, and the code provided by XILINX is also studied. In ...
Posted by Kenny Pollock on Thu, 25 Nov 2021 22:37:28 +0100