The echarts-x axis does not start with the 0 scale __echarts

1, the problem background

The number of trees planted within one week, using a histogram to achieve

2, the realization of the source code

(1) x axis starting from zero scale

<! 
		DOCTYPE html>  

(2) x axis does not start from zero scale

<! 
		DOCTYPE html>  

3, the implementation of the results
(1) x axis starting from zero scale



(2) x axis does not start from zero scale



4, the problem description

The Boundarygap property in Xaxis, set to False to represent the start of the 0 tick, and set to true to represent a distance from the 0 tick interval