擅长:python、mysql、java
<p>这样做的方式是:</p>
<pre><code>for line in open('normRowsRaw.txt'):
# use a list comprehension to build your array on the fly
array = line.split(',')
del array[len(array)-1] #to remove \n from array
new_array = []
for i in range(0,len(array)-1):
new_array.append(float(array[i]))
#After all elements are added to an array, add array to result
arrays.append(new_array)
</code></pre>