import matplotlib.pyplot as plt
 
# 原始情况
n_original = list(range(1, 31))
t_original = [i * (13/30) for i in n_original]
 
# 优化后情况
n_optimized = list(range(1, 31))
t_optimized = [0.5 + (i-1)*(13/30) for i in n_optimized]
 
# 绘制曲线
plt.figure(figsize=(10, 6))
plt.plot(n_original, t_original, label='原始队列', color='blue', linestyle='-')
plt.plot(n_optimized, t_optimized, label='优化后队列', color='red', linestyle='--')
 
# 标注关键机组位置
plt.scatter(15, 6.5, color='black', marker='o', label='原始关键机组位置')
plt.scatter(1, 0.5, color='black', marker='s', label='优化后关键机组位置')
 
plt.xlabel('数据单元（200GB/单元）')
plt.ylabel('传输时间（小时）')
plt.title('机组数据传输时间对比')
plt.legend()
plt.grid(True)
plt.show()

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