问题描述
我试图找出一种方法来比较两个字符串并返回它们的常用"词，因为字符串总是小写，我想为此创建一个函数..例如
I was trying to figure out a way to compare two strings and returns their 'common' words, given that the strings are always in lowercase, I wanted to create a function for this..for example
str1 = "this is a test"
str2 = "saldkasl test asdasd"
result = stringcompare(str1, str2) 'returns "test"
两个字符串之间的常用词应该是test"并且如果两个字符串有两个或两个以上的常用词，函数应该连接字符串
the common word between the two strings should be "test"and if, the two strings have two or more common words, the function should concatenate the strings
str1 = "this is another test"
str2 = "another asdsada test asdsa"
result = stringcompare(str1, str2) ' returns "another test"
我找到了一个有用的链接，它给了我一个想法但是不知何故真的缺少一些东西
i have found a useful link, it gave me an idea but somehow something is really lacking
我现在正在做的伪代码是这样的，
A pseudocode of what I'm doing right now is this,
**
'1st: separate the words by every space, " ", then store it in an array or list
'2nd: compare each item on the list, if equal then store to variable 'result'
**
这样好吗?我认为它很慢，也许有人对此有更好的方法..谢谢
is this okay? I think it is slow and maybe there is someone out there that has a better approach on this..thanks
推荐答案
在 VS 2013 中测量，以下解决方案比 Guffa 的解决方案平均快 20%:
As measured in VS 2013, below solution is on average 20% faster than Guffa's:
Dim str1 As String = "this is another test"
Dim str2 As String = "another asdsada test asdsa"
Dim result As String = String.Join(" ", str1.Split(" "c).
Intersect(str2.Split(" "c)))
通过将每个解决方案循环 100000 次并使用 StopWatch 测量时间获得结果.
Results were obtained by looping each solution 100000 times and measuring time with StopWatch.
这篇关于在多个字符串中查找常见文本出现的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！