= B '// body / div [% s] / div / div [2] / div / UL / Li [% s]'
# taken [% s] and taking preceding string
print (b.split ( "[% S] ") [0])
# taken rearmost [% s] and taking preceding string
print (b.rsplit (" [% s ] ", 1) [0])
Interception element
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Origin www.cnblogs.com/test-hui/p/12095054.html
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