为多列绘制一种颜色的pandas数据帧

import pandas as pd
import matplotlib.pyplot as plt

data = {'Column1': [1, 2, 3, 4, 5],
        'Column2': [6, 7, 8, 9, 10],
        'Column3': [11, 12, 13, 14, 15]}
df = pd.DataFrame(data)

plt.style.use('ggplot')
colors = ['red', 'green', 'blue']  # 设置颜色列表

for i, column in enumerate(df.columns):
    plt.plot(df[column], color=colors[i], label=column)

plt.legend()  # 显示图例
plt.show()  # 显示图形