pyecharts两个Y轴的折线图怎么画

您可以使用Pyecharts中的Line和Overlap组合两个折线图，并分别设置两个Y轴，如下所示：

from pyecharts.globals import ThemeType
from pyecharts import options as opts
from pyecharts.charts import Line, Overlap

# 构造数据
x_data = ["Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun"]
y1_data = [820, 932, 901, 934, 1290, 1330, 1320]
y2_data = [100, 200, 300, 400, 500, 600, 700]

# 构造第一个折线图，设置第一个Y轴
line1 = (
    Line(init_opts=opts.InitOpts(theme=ThemeType.LIGHT))
    .add_xaxis(xaxis_data=x_data)
    .add_yaxis(
        series_name="Line 1",
        y_axis=y1_data,
        yaxis_index=0,
        label_opts=opts.LabelOpts(is_show=False),
    )
    .set_global_opts(
        title_opts=opts.TitleOpts(title="Line 1 and Line 2"),
        tooltip_opts=opts.TooltipOpts(trigger="axis", axis_pointer_type="cross"),
        yaxis_opts=opts.AxisOpts(
            axislabel_opts=opts.LabelOpts(formatter="{value} ml"),
            splitline_opts=opts.SplitLineOpts(is_show=True),
        ),
    )
)

# 构造第二个折线图，设置第二个Y轴
line2 = (
    Line(init_opts=opts.InitOpts(theme=ThemeType.LIGHT))
    .add_xaxis(xaxis_data=x_data)
    .add_yaxis(
        series_name="Line 2",
        y_axis=y2_data,
        yaxis_index=1,
        label_opts=opts.LabelOpts(is_show=False),
    )
    .set_global_opts(
        yaxis_opts=opts.AxisOpts(
            axislabel_opts=opts.LabelOpts(formatter="{value} ml"),
            splitline_opts=opts.SplitLineOpts(is_show=True),
        )
    )
)

# 将两个折线图叠加在一起
overlap = Overlap()
overlap.add(line1)
overlap.add(line2)
overlap.render("double_y_axis_line_chart.html")

运行后会生成一个名为 "double_y_axis_line_chart.html" 的HTML文件，可以在浏览器中打开查看效果。