echarts的axisLabel无法自动换行，于是自己写了个方法
<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>表单验证</title>
<script src="https://cdn.jsdelivr.net/npm/vue@2.5.16/dist/vue.js"></script>
<link rel="stylesheet" href="https://unpkg.com/element-ui/lib/theme-chalk/index.css">
<script src="https://unpkg.com/element-ui/lib/index.js"></script>
<style>
.el-scrollbar__wrap {
overflow-x: visible;
}
</style>
</head>
<body>
<div id="app">
<pre> {{ text }}</pre>
<pre> {{ textWrap(text) }}</pre>
</div>
<script>
new Vue({
el: "#app",
data: {
text: 'This is a test text, veryveryveryvery long text.'
},
methods: {
textWrap(text) {
let str = ''
let maxNum = 20
let arr = text.split(' ')
let tmp = ''
arr.forEach(item => {
if (item.length >= maxNum) {
str = str + item + '\n'
} else {
if (tmp.length + item.length < maxNum) {
tmp = tmp + item + ' '
} else {
str = str + tmp + '\n'
tmp = item + ' '
}
}
})
str = str + tmp
return str
}
}
})
</script>
</body>
</html>
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