第一题
"<tag1> asdf<tag1><tag2> <tag3> as df <tag4>1234<tag4> <tag2>" [tag1, tag1, tag2, tag3, tag4, tag4, tag2]
result = []
x = x.strip().split("<")
for res in x:
res = res.split(">")[0]
result.append(res)
第二题
"<tag1> asdf</tag1><tag2> <tag3/> as df <tag4>1234</tag4> </tag2>" <tag1> asdf </tag1> <tag2> <tag3/> as df <tag4> 1234 </tag4> </tag2>
result = []
x = x.strip().split("<")
for res in x:
res = res.split(">")
for i in res:
i = i.split()
if(i.find('tag')):
result.append('<'+i+'>'+'
')
else:
result.append(i+'
')