Why does echarts3 draw two related diagrams in one canvas?

as shown in the following figure:
clipboard.png

Apr.13,2022

series is an array


I think you can write two canvas with the same data

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-64f5-1c1c989-3b6c6.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1c1c989-3b6c6.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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