擅长:python、mysql、java
<p>试试这个</p>
<pre class="lang-py prettyprint-override"><code>def process_file():
infile = open('5min.csv', 'r')
temp=0;hum=0;pres=0
count=0
line = infile.readline() #do it since the first line is label as per you
for x in infile:
count+=1
line = infile.readline()
line = line.strip()
line_contents = line.split(",")
temp+=float(line_contents[1])
hum+= float(line_contents[2])
pres+=float(line_contents[3])
infile.close
print([temp/count,hum/count,pres/count])
</code></pre>