如果除了"忽略关键字"以外的任何其他内容,如何在字符串上创建if条件其次是" foo-" 例如:以下两个字符串应分别通过和失败:
success =' \ nrandom stuff,foo-忽略关键字\ nfoo +忽略 关键字\ n随机的东西; \ nfoo-忽略关键字'
fail =' \ nrandom stuff,foo-忽略关键字\ nfoo +忽略 关键字\ n随机的东西; \ nfoo-忽略关键字\ nfoo-这个 应该失败'
我正在尝试这条线并且无法使其发挥作用:
Project -> Clean...
答案 0 :(得分:0)
现在它完全符合您的要求:
success = '\nrandom stuff,foo- Ignore keyword\nfoo+ Ignore keyword\n random stuff;\nfoo- Ignore keyword'
fail = '\nrandom stuff,foo- Ignore keyword\nfoo+ Ignore keyword\n random stuff;\nfoo- Ignore keyword\nfoo- this should fail'
# to be successful only "Ignore keyword" after "foo- "
elem_to_search = "foo- "
keyword = "Ignore keyword"
def check_sentence(elem_to_search, keyword, string_to_check):
index = 0
keyword_first = len(elem_to_search)
keyword_last = len(elem_to_search) + len(keyword)
while index < len(string_to_check):
index = string_to_check.find(elem_to_search, index)
if index == -1:
break
elif string_to_check[index + keyword_first : index + keyword_last] == keyword:
index += len(elem_to_search)
else:
print "fail"
break
check_sentence(“foo-”,“忽略关键字”,成功)将通过
check_sentence(“foo-”,“忽略关键字”,失败)将打印失败。