箭头符号简单演示下载这个示例箭头符号简单演示 import matplotlib.pyplot as pltax = plt.axes()ax.arrow(0, 0, 0.5, 0.5, head_width=0.05, head_length=0.1, fc='k', ec='k')plt.show() 下载这个示例 下载python源码: arrow_simple_demo.py下载Jupyter notebook: arrow_simple_demo.ipynb