Create weather_forecast.py

由温度、风力，但是不是双y轴

Author: Listenpeng

matplotlib/weather_forecast.py

@@ -0,0 +1,24 @@
+#Author: Listen
+#!/usr/bin/env python3
+#-*- coding:utf-8 -*-
+
+import matplotlib.pyplot as plt
+import numpy as np
+
+plt.figure()
+#生成一个50以内的随机数列表
+x= [x for x in range(50)]
+#颜色的列表
+colors = ['r','y','g','b','c','m']
+#标志的字典
+legends={'circle':'o','star':'*','triangle_down':'v',
+         'dash-dot':'-.','dashed_line':'--','x_mark':'x'}
+plt.yticks([y for y in range(-7,20,2)])
+#enumerate 列举
+for index,t in enumerate(legends.values()):
+    sample_y=np.random.randn(50).cumsum()
+    plt.plot(x,sample_y,t,color=colors[index])
+
+plt.legend(legends.keys(),loc=2)
+plt.savefig('../savefig/mult_dot.png')
+plt.show()