The onChange event of the input box, the input value can not be less than 0.01and not more than 10000, there is a prompt for input errors (errors can not be prompted frequently)?

the above is the problem, and the bottom is written by yourself, but the prompt error will operate frequently

Mar.10,2021

give an answer without JS:

.error-msg
  display: none

  input:invalid + &
    display: block
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-64f5-1bde5f6-30c38.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1bde5f6-30c38.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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