img_url=[]
img_urls=soup.find('div',attrs={'class':'zgn2R'}).find('div',attrs={'class':'VSCT'}).find('script',attrs={'type':'text/javascript'})
img_urls=str(img_urls)
# print(img_urls)
regex=re.search("//[^\s]*,",img_urls)
tupian_url=regex.group(0)
tupian_url=tupian_url.replace('",','')
img_url.append('http:'+tupian_url)
# print(img_url)
group(0)表示匹配整体,group(1)表示匹配第一个()内的内容