检查字符串中是否包含某字符集合中的字符
任务:
检查字符串中是否出现了某个字符集合中的字符
解决方案:
方案一:
import itertools def containAny(seq,aset): for item in itertools.ifilter(aset.__contains__,seq): return True return False if __name__ == "__main__": l1 = list(‘python‘) l2 = set(‘x‘) print containAny(l1,l2)
方案二:
l1 = list(‘python‘) l2 = set(‘df‘) def containAny(seq,aset): for a in seq: if a in aset: return True return False print containAny(l1,l2)
简化字符串的translate方法的使用
任务:
用字符串的translate方法来进行快速编码,将string.maketrans函数简单封装。
解决方案:
import string def translator(frm = ‘‘,to = ‘‘,delete = ‘‘ ,keep = None): if len(to) == 1: to = to*len(frm) trans = string.maketrans(frm, to) if keep is not None: allchars = string.maketrans(‘‘,‘‘) delete = allchars.translate(allchars,keep.translate(allchars,delete)) def translate(s): return s.translate(trans,delete) return translate
时间: 2024-10-02 06:32:13