#####需求描述:
Write a function to find the longest common prefix string amongst an array of strings.
写一个函数获取字符串数组中最长的字符串前缀
#####pythonic实现:
class Solution:
def longestCommonPrefix(self, strs):
ret, l = '', len(strs)
for t in zip(*strs):
if t != tuple(t[0] * l):
break
ret += t[0]
return ret
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