echarts去除背景色

要去除echarts的背景色，可以使用backgroundColor属性并将其设置为透明色，即rgba(0, 0, 0, 0)。通过这样的设置，背景色将变为透明，从而实现了去除背景色的效果。 <span class="em">1</span><span class="em">2</span><span class="em">3</span>
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