几行代码的小工具，用于进行如下转换
TRANSACTIONS ON CLOUD COMPUTING
=》
Transactions On Cloud Computing
orig = 'TRANSACTIONS ON CLOUD COMPUTING'
splited = orig.split(' ')
handled = ''
for word in splited:
word = word[0] + word[1:].lower()
handled += (' ' + word)
handled = handled[1:]
print handled
#handled is 'Transactions On Cloud Computing'