How to extend the x y axis of echarts line chart

echarts
http://echarts.baidu.com/exam.
this line chart example how to extend the two axes without ending with the scale to achieve the following effect

clipboard.png

boundaryGap: ["20%","20%"] tried with no effect

Mar.16,2021

simulated data


Ai Louzhong solved the problem. Thank you


how to solve it?

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-64f5-1be1f25-315dd.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1be1f25-315dd.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
Need Help?