擅长:python、mysql、java
<p>创建简单的for循环比我想象的要容易,这里对其他人来说</p>
<pre class="lang-py prettyprint-override"><code>import os
import numpy as np
import urllib.requests
import matplotlib.pyplot as plt
#load the .txt file
ES_D1 = np.loadtxt(fname = os.getcwd()+"\ES\D1\ES_10122007_04122019_D1.txt", dtype='str')
#now need to loop through the array
#this is the engine
for i in range(ES_D1.shape[0]):
if ES_D1[i,3] > ES_D1[i,6]:
print(ES_D1[i,0])
</code></pre>