Python中哈哈哈字符串的简单使用

 1 def get_string(string, key):
 2     chars = ['。', '，', '.', ',', '\\n']
 3     print("old str:" + string)
 4     match = re.search(key, string)
 5     if match:
 6         start = match.start()
 7         end = match.end()
 8         beforeText = string[0:start]
 9         endText = string[end: len(string)]
10         print("beforeText:" + beforeText)
11         print("endText:" + endText)
12 
13         beforeIndex = getBeforeCharIndex(beforeText, chars)
14         if beforeIndex > -1:
15             beforeText = beforeText[0:beforeIndex]
16 
17         nextIndex = getNextCharIndex(endText, chars)
18         if nextIndex < len(endText):
19             endText = endText[nextIndex:len(endText)]
20 
21         print("result str:" + beforeText + endText)
22 
23 
24 def getBeforeCharIndex(str, chars):
25     index = -1
26     for c in chars:
27         cIndex = str.rfind(c)
28         if (cIndex > index):
29             index = cIndex
30     return index
31 
32 
33 def getNextCharIndex(str, chars):
34     index = len(str)
35     for c in chars:
36         try:
37             cIndex = str.index(c)
38             if (cIndex < index):
39                 index = cIndex
40         except Exception as e:
41             print(c)
42             # print(e)
43     return index