https://www.cnblogs.com/penghuwan/p/11366446.html

yAxis: { show: true, type: "log", min:1//设定纵坐标最小值 }, s...

https://www.cnblogs.com/luojianjian/p/8053113.html

https://www.cnblogs.com/tongjiaojiao/p/10191627.html

document.onreadystatechange = function () { if (document.readyState =...

https://www.jianshu.com/p/31f52aade33d

父级元素设置height：0的话，其子元素就不需要设置了，并且高宽比的参照物不一样，试验可知。