删除 CrossMore.py
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CrossMore.py
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CrossMore.py
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import matplotlib.pyplot as plt
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import numpy as np
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import base64
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from io import BytesIO
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def function_drawing(function, x_range=(-10, 10), y_range=(-20, 20), dpi=100):
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# 创建一个图像和坐标轴对象
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fig, ax = plt.subplots()
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# 生成x值
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x = np.linspace(x_range[0], x_range[1], 400)
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# 计算y值
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y = function(x)
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# 绘制图像
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ax.plot(x, y)
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# 设置坐标轴范围
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ax.set_xlim(x_range)
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ax.set_ylim(y_range)
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# 隐藏坐标轴
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ax.axis('on')
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# 将图像保存到BytesIO对象
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buf = BytesIO()
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fig.savefig(buf, format='png', dpi=dpi)
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# 获取图像数据的Base64编码
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data = base64.b64encode(buf.getbuffer()).decode("ascii")
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# 关闭图像和坐标轴对象
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plt.close(fig)
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# 返回Base64编码的字符串
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return f'<img src="data:image/png;base64,{data}" alt="Base64 图片">'
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