Python字符串sli

Question

如何将字符串与列表进行比较。在

string = "how to dye my brunet hair to blonde? "
list = ['how', 'how to',...]

我希望代码删除“如何”并打印其余部分。在

^{pr2}$

有什么想法吗？在

Answer 1

In [1]: s = "how to dye my brunet hair to blonde? "

In [2]: print s.replace("how to", "")
 dye my brunet hair to blonde? 

以这种方式使用时，^{}将用第二个参数替换所有出现的第一个参数。它还接受可选的第三个参数，这将限制替换的数量。例如，如果您只希望替换第一个出现的“how to”，这将非常有用。在

Answer 2

>>> string[len('how to'):]
' dye my brunet hair to blonde? '

Answer 3

这样可以确保更换只在开始时进行。不过，效率并不高。如果你能清楚地知道你想要做什么，也许会有帮助。在

string = "how to dye my brunet hair to blonde? "
list = ['how', 'how to',"bananas"]
list.sort(key=len,reverse=True)  # sort by decreasing length

for sample in string, "bananas taste swell", "how do you do?":
  for beginning in list:
    if sample.startswith(beginning):
      print sample[len(beginning):]
      break
  else:   # None of the beginnings matched
    print sample