matplotlib & pandas

Python/matplotlab/gallery/userdemo/annotate_simple_coord01.md

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+# 简单Coord01注释示例
+
+![简单Coord01注释示例](https://matplotlib.org/_images/sphx_glr_annotate_simple_coord01_001.png)
+
+```python
+import matplotlib.pyplot as plt
+
+fig, ax = plt.subplots(figsize=(3, 2))
+an1 = ax.annotate("Test 1", xy=(0.5, 0.5), xycoords="data",
+                  va="center", ha="center",
+                  bbox=dict(boxstyle="round", fc="w"))
+an2 = ax.annotate("Test 2", xy=(1, 0.5), xycoords=an1,
+                  xytext=(30, 0), textcoords="offset points",
+                  va="center", ha="left",
+                  bbox=dict(boxstyle="round", fc="w"),
+                  arrowprops=dict(arrowstyle="->"))
+plt.show()
+```
+
+## 下载这个示例
+            
+- [下载python源码: annotate_simple_coord01.py](https://matplotlib.org/_downloads/annotate_simple_coord01.py)
+- [下载Jupyter notebook: annotate_simple_coord01.ipynb](https://matplotlib.org/_downloads/annotate_simple_coord01.ipynb)
+