上传新文件

Matplotlib Drawing/Problem 3/B.py

+import numpy as np
+import matplotlib.pyplot as plt
+data = [[10., 20., 30., 20.],[40., 25., 53., 18.],[6., 22., 52., 19.]]
+x = np.arange(4)
+colors = ['r', 'g', 'b']
+for i in range(len(data)):
+    plt.plot(x + i * 0.25, data[:i], color = colors[i], width = 0.25)
+plt.show()
\ No newline at end of file