Altair python -如何在for中对齐图表的x轴(=0)

import altair as alt
import pandas as pd

# 创建一个空的DataFrame
df = pd.DataFrame()

# 循环生成数据并添加到DataFrame中
for i in range(5):
    data = pd.DataFrame({'x': range(10), 'y': range(i*10, (i+1)*10)})
    df = pd.concat([df, data])

# 创建图表
charts = []
for i in range(5):
    chart = alt.Chart(df[df['x'] == i]).mark_line().encode(
        x='x',
        y='y'
    )
    charts.append(chart)

# 将图表连接在一起并设置x轴的对齐方式为共享
combined_chart = alt.concat(*charts, resolve_scale={'x': 'shared'})

# 显示图表
combined_chart.show()