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echarts设置背景图

div添加background

html

<div id="chart" style="width:100%;height:100%;background:url('imgurl')" />

使用backgroundcolor配置

javascript

const img = new Image()
img.src = 'imgurl'
img.width = '100%'
img.height = '100%'

option = {
    backgroundcolor: {
        image: img,
        repeat: 'no-repeat'
    }
}

使用graphic配置

javascript

option = {
    graphic: [
        {
            type: 'image',
            left: '0%',
            bottom: '0%',
            left: '0%',
            right: '0%',
            style: {
                image: 'imgUrl'
            }
        }
    ]
}