擅长:python、mysql、java
<p>我英语不是很好,但我想这是你所期望的</p>
<pre><code>L = 'john jr 0, Akbar AK 1001, doctor rd 9999, Mohammedans med 1000, pat mat 200,
cajole Jul 21'
L = L.split(',')
Sum_L = 0
for i in range(0,len(L)):
L[i] = (L[i].strip()).split(' ')
Sum_L = Sum_L + int(L[i][2])
print(Sum_L)
</code></pre>