[問題] variable的定義

[popjuice (pop juice)]

小弟想問個很基本的問題
當執行這段code的時候(找網頁連結的)

def get_next_target(page):
    start_link = page.find('<a href=')
    start_quote = page.find('"', start_link)
    end_quote = page.find('"', start_quote + 1)
    url = page[start_quote + 1:end_quote]
    return url, end_quote

get_next_target('The site is called Google <a href= "www.google.com">')
print url

為什麼系統會說 name 'url' is not defined

謝謝!


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◆ From: 218.212.193.217
→ darkgerm:因為 url 是 get_next_target 的 local variable
→ ccwang002:應該要 ul, edquote = get_next_target(...);  print ul
→ popjuice:謝謝!