请问一下python正则表达式，split怎么有这么多None?

Question

python正则表达式，split怎么有这么多None?

Answer 1

i = 0; i < tmp.length; i++) {
if (tmp[i].indexOf("]") != -1) {
HashMap<String, String> tb = new HashMap<String, String>();
tb.put("list", tmp[i]);
aap.add(tb);
}
}
SpecialAdapter sa = new SpecialAdapter(this, aap, R.layout.listcontent,
new String[] { "list" }, new int[

Answer 2

s = 'Hello!This?Is!What?I!Want'
for i in ('!', '?'):
s = s.replace(i,' ')
list1 = s.split()
list1 = [i for i in list1 if i]