echarts 饼图花纹

ECharts饼图可以通过设置series中的itemStyle属性来实现花纹效果。具体可以通过设置饼图的样式属性来实现花纹效果，比如设置阴影、渐变、图案等。在ECharts中，可以使用渐变填充、纹理填充和图案填充等方式来实现花纹效果。通过设置饼图的颜色参数，可以实现不同的花纹效果。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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