用代码写画一个指数函数的图像

Sure, here is the code to plot an exponential function in Python using matplotlib:

import matplotlib.pyplot as plt
import numpy as np

x = np.linspace(-5, 5, 1000)
y = np.exp(x)

plt.plot(x, y)
plt.xlabel('x')
plt.ylabel('y')
plt.title('Exponential Function')
plt.show()

This will plot the graph of the exponential function `y = e^x` on the x-axis ranging from -5 to 5.