Scrapy using the pit---meta parameters to pass the recurring problem

Problem Description:

Crawler target:

Realize the video information crawl of the website, as long as the information structure crawl order for * * Keyword search results, get the title of a video on the first page, URL, and time, and then go to the subordinate page crawl the corresponding comments, replies, barrage, points like numbers and so on data, The combined composition of a full information about the video returns item for subsequent processing and storage.

Problem point:

The meta parameter that appears in the called function when it is passed through the meta parameter is repeated multiple times, and nonsense does not say much about code maps:

Scrapy using the pit---meta parameters to pass the recurring problem