把代码写py文件里输出不了结果,但是写在console里就有,怎么改

akon_wang

1. import numpy as np
   
2. import matplotlib.pyplot as plt
   
3. I = 10000
   
4. S0 = 100
   
5. M = 50
   
6. T = 2.0
   
7. sigma = 0.25
   
8. r = 0.05
   
9. 
   
10. dt = T / M
    
11. S = np.zeros((M+1, I))
    
12. S[0] = S0
    
13. for t in range(1, M+1) :
    
14.     S[t] = S[t-1] * np.exp((r - 0.5 * sigma ** 2) * dt + \
    
15.     sigma * np.sqrt(dt) * np.random.standard_normal(I))
    
16. 
    
17. fig = plt.figure(figsize=(12, 7.5))
    
18. plt.plot(S[:, :10], lw=1.5)
    
19. plt.xlabel('Time')
    
20. plt.ylabel('Index Level')
    
21. plt.title('Stock Prices Paths')
    
22. plt.grid()

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代码如下,怎么改 谢谢大家~

akon_wang

自己解决了,加

1. plt.show()

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就行了