How do I highlight the default city on my echarts map?

for example, if you display a map of China, you will default to Beijing with red highlights. How to set it up? it doesn"t work even if you look it up on the Internet.

Jquery echarts javascript
Mar.06,2021

https://blog.csdn.net/liuchon. is not sure if what you said is the same as this.

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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-64f5-1b308d8-2bd27.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b308d8-2bd27.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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