for s in stocks_list:
print s
how do I know what "position" s is in? So that I can do stocks_list[4] in the future?
If you know what you're looking for ahead of time you can use the index method:
>>> stocks_list = ['AAPL', 'MSFT', 'GOOG']
>>> stocks_list.index('MSFT')
1
>>> stocks_list.index('GOOG')
2
for index, s in enumerate(stocks_list):
print index, s
[x for x in range(len(stocks_list)) if stocks_list[x]=='MSFT']
该位置由stocks_list.index(s) 调用,例如:
print (stocks_list.index(s))
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