重点代码
itemStyle: {
show: true,
color: new echarts.graphic.LinearGradient(0, 0, 1, 0, [{
offset: 0,
color: '#C70019'
}, {
offset: 0.5,
color: '#EB354C'
}, {
offset: 1,
color: '#C70019'
}]),
barBorderRadius: [20, 20, 0, 0],
borderWidth: 0,
borderColor: '#333',
}
Done!