matplotlib & pandas

Python/matplotlab/gallery/pyplots/pyplot_three.md

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+# Pyplot 绘制三条线
+
+在一次调用 [plot](https://matplotlib.org/api/_as_gen/matplotlib.pyplot.plot.html#matplotlib.pyplot.plot) 绘图中绘制三个线图。
+
+```python
+import numpy as np
+import matplotlib.pyplot as plt
+
+# evenly sampled time at 200ms intervals
+t = np.arange(0., 5., 0.2)
+
+# red dashes, blue squares and green triangles
+plt.plot(t, t, 'r--', t, t**2, 'bs', t, t**3, 'g^')
+plt.show()
+```
+
+![Pyplot 绘制三条线示例](https://matplotlib.org/_images/sphx_glr_pyplot_three_001.png)
+
+## 参考
+
+此示例显示了以下函数、方法、类和模块的使用：
+
+```python
+import matplotlib
+matplotlib.pyplot.plot
+matplotlib.axes.Axes.plot
+```
+
+## 下载这个示例
+            
+- [下载python源码: pyplot_three.py](https://matplotlib.org/_downloads/pyplot_three.py)
+- [下载Jupyter notebook: pyplot_three.ipynb](https://matplotlib.org/_downloads/pyplot_three.ipynb)