The problem of execution sequence of python collaboration programs

problem description:

when I was working on the actual combat article of Liao Xuefeng, I had a question when operating the database. I first defined two co-programs, and then defined a main co-program await to execute the two co-programs sequentially. (I think.), was executed sequentially and the log was printed, and it was found that it was not the result I expected.

python version: 3.6.4

the complete code is as follows: 

   
 (Note: actually the order is not certain, sometimes 1 is in the first column) 


  my doubts:  


  await  is not  yield from ? That is, give control to the main loop, so shouldn"t I have more than one  await  in the same loop to execute sequentially? So according to reason, shouldn"t 1 be displayed in the first column?
Asyncio co-program python
Mar.16,2021

tested more than 30 times on the command line to avoid out-of-order problems, and determined that it was the pycharm itself.

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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-64f5-1bf5f78-31fa8.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1bf5f78-31fa8.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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