I have the following question:
Print a string which has the reverse order 'Python love We. Science Data love We'
所以我试了一下:
strg = We love Data Science. We love Python
words = strg.split(" ")
words.reverse()
new_strg = " ".join(words)
print(new_strg)
>>> Python love We Science. Data love We
但答案并不像预期的那样，因为Science之后的.并不在正确的位置.
有没有办法达到预期的效果？
这是你需要的yields 吗？
Python love We. Science Data love We
那么代码是
strg = 'We love Data Science. We love Python'
pos = len(strg) - strg.index('.') - 2
words = [e.strip('.') for e in strg.split()]
words.reverse()
new_strg = ' '.join(words)
print(new_strg[:pos] + '.' + new_strg[pos:])
或者是另一种方式:
strg = 'We love Data Science. We love Python'
new_strg = [s.split()[::-1] for s in strg.split('.')][::-1]
print(' '.join(new_strg[0]) + '. ' + ' '.join(new_strg[1]))
#or
print('{}. {}'.format(' '.join(new_strg[0]), ' '.join(new_strg[1])))
或者提高标准:
strg = 'We love Data Science. We love Python'
print('. '.join([' '.join(new_strg.split()[::-1]) for new_strg in strg.split('.')[::-1]]))