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31 lines
771 B
Markdown
31 lines
771 B
Markdown
# 光标
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```python
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from matplotlib.widgets import Cursor
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import numpy as np
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import matplotlib.pyplot as plt
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# Fixing random state for reproducibility
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np.random.seed(19680801)
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fig = plt.figure(figsize=(8, 6))
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ax = fig.add_subplot(111, facecolor='#FFFFCC')
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x, y = 4*(np.random.rand(2, 100) - .5)
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ax.plot(x, y, 'o')
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ax.set_xlim(-2, 2)
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ax.set_ylim(-2, 2)
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# Set useblit=True on most backends for enhanced performance.
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cursor = Cursor(ax, useblit=True, color='red', linewidth=2)
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plt.show()
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```
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## 下载这个示例
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- [下载python源码: cursor.py](https://matplotlib.org/_downloads/cursor.py)
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- [下载Jupyter notebook: cursor.ipynb](https://matplotlib.org/_downloads/cursor.ipynb) |