python中快速进行多个字符替换的方法小结
先给出结论:
可行的方法: 1. 链式replace() string.replace().replace() 1.x 在 2. 使用string.maketrans 3. 先 re.compile 然后 re.sub …… def a(text): chars = "" for c in chars: text = text.replace(c,"" + c) def b(text): for ch in ['&','#']: if ch in text: text = text.replace(ch,""+ch) import re def c(text): rx = re.compile('([])') text = rx.sub(r'1',text) RX = re.compile('([])') def d(text): text = RX.sub(r'1',text) def mk_esc(esc_chars): return lambda s: ''.join(['' + c if c in esc_chars else c for c in s]) esc = mk_esc('') def e(text): esc(text) def f(text): text = text.replace('&','&').replace('#','#') def g(text): replacements = {"&": "": "#"} text = "".join([replacements.get(c,c) for c in text]) def h(text): text = text.replace('&',r'&') text = text.replace('#',r'#') def i(text): text = text.replace('&',r'&').replace('#',r'#') 参考链接: http://stackoverflow.com/questions/3411771/multiple-character-replace-with-python http://stackoverflow.com/questions/6116978/python-replace-multiple-strings http://stackoverflow.com/questions/8687018/python-string-replace-two-things-at-once http://stackoverflow.com/questions/28775049/most-efficient-way-to-replace-multiple-characters-in-a-string 总结 以上就是这篇文章的全部内容了,希望本文的内容对大家学习或者使用python能有所帮在,如果有疑问大家可以留言交流。 (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |