python中进行多个字符替换的方法介绍

string.replace().replace()

for

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 redef c(text): rx = re.compile('([])') text = rx.sub(r'\', text)RX = re.compile('([])')def d(text): text = RX.sub(r'\', 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'#')