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我已經編寫了以下函數來構造基URL的URL查詢。SyntaxError:無法分配給運算符
start_date='03-03-1997'
end_date='10-04-2015'
yf_base_url ='http://real-chart.finance.yahoo.com/table.csv?s=%5E'
index_list = ['BSESN','NSEI']
url = "http://real-chart.finance.yahoo.com/table.csv?s=%5E{}&a=03&b=3&c=1997&d=10&e=4&f=2015&g=d&ignore=.csv".format('BSESN')
def generate_url(index, start_date, end_date):
if (index == 'BSESN') or (index == 'NSEI'):
s_day = start_date.split('-')[0]
s_month = start_date.split('-')[1]
s_year = start_date.split('-')[2]
e_day = end_date.split('-')[0]
e_month = end_date.split('-')[1]
e_year = end_date.split('-')[2]
print('{} {} {} {} {} {}'.format(s_day,s_month,s_year,e_day,e_month,e_year))
url = (yf_base_url.join(index))&a=s_day&b=s_month&c=s_year&d=e_day&e=e_month&f=e_year
return url
我收到以下錯誤消息。
File "get_data.py", line 21
url = (yf_base_url.join(index))&a=s_day&b=s_month&c=s_year&d=e_day&e=e_month&f=e_year
SyntaxError: can't assign to operator
我想弄清楚爲什麼不能這樣做。
你期望所有的'&blah = blah&blah = blah'的東西要做什麼?你是否試圖將該文本追加到字符串的末尾?你認爲'yf_base_url.join(index)'有什麼作用? – user2357112