import matplotlib.pyplot as plt
import numpy as np

years = [2022, 2023, 2024]
scores = {
    '普通组': [259, 259, 259],
    '三校组': [203, 203, 203]
}

plt.figure(figsize=(10, 5))
for group, score in scores.items():
    plt.plot(years, score, marker='o', label=group)

plt.title('江西电力职业技术学院单招分数线变化趋势')
plt.xlabel('年份')
plt.ylabel('分数线')
plt.xticks(years)
plt.grid()
plt.legend()
plt.savefig('/mnt/data/jiangxi_electricity_single_enrollment_scores_trend.png')
plt.show()