1 crawling of drug instructions in the drug network

https://www.111.com.cn/

this is the address of 1 Pharmaceutical Network. I want to crawl all the drug instructions on the above website. Under the problems I can encounter now, when I look at a certain type of drug under the drug catalog, the medicine is paginated, and the maximum number of pages is 50 pages. But in fact, the real medicine is more than 50 pages. How can I get all the drugs?

Jan.24,2022
MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1b3809e-2c0da.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b3809e-2c0da.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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