pyechats 面向对象编程

def bar_border_radius():
    c = (
        Bar(init_opts=opts.InitOpts(
                animation_opts=opts.AnimationOpts(
                    animation_delay=500, animation_easing="cubicOut"
                ),
                theme=ThemeType.MACARONS))
        .add_xaxis( ["草莓", "芒果", "葡萄", "雪梨", "西瓜", "柠檬", "车厘子"])
        .add_yaxis("A", Faker.values(),category_gap="50%",markpoint_opts=opts.MarkPointOpts(),is_selected=True)
        .set_series_opts(itemstyle_opts={
            "normal": {
                "color": JsCode("""new echarts.graphic.LinearGradient(0, 0, 0, 1, [{
                    offset: 0,
                    color: 'rgba(0, 244, 255, 1)'
                }, {
                    offset: 1,
                    color: 'rgba(0, 77, 167, 1)'
                }], false)"""),
                &