时间：2019-03-17 标签：c#substringindexof

发布于 2024-11-05 08:22:18 字数 419 浏览 8 评论 0原文

我有一个看起来像这样的字符串 - "FirstName||Sam LastName||Jones Address||123 Main ST ..."（还有 100 个不同的值）

我只想从整个字符串中查找 Sam 和 Jones。

so string firstname = originalstring.substring ... 等等。

有谁知道我该怎么做？

添加 - 我想我忘了提及几件事。

FirstName||Sam\r\n MiddleName||\r\n LastName||Jones\r\n ....

因此，现在如果我计算对我没有帮助的字符数，则可能需要更多项目，而不仅仅是名字和姓氏。

原文

i have a string which looks like this -
"FirstName||Sam LastName||Jones Address||123 Main ST ..." (100 more different values)

I want to find only Sam and Jones from the entire string.

so string firstname = originalstring.substring ... etc.

Does anyone know how I can do this?

ADDITION -
I think i forgot to mention couple of things.

FirstName||Sam\r\n MiddleName||\r\n LastName||Jones\r\n ....

So now if i count the number of characters that wont help me, cause could need more items other than just firstname and lastname.

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拥抱我好吗 2024-11-12 08:22:18

使用正则表达式：

string myString = "FirstName||Sam LastName||Jones Address||123 Main ST...";
string pattern = @"FirstName\|\|(\w+) LastName\|\|(\w+) ";
Match m = Regex.Match(myString, pattern);
string firstName = m.Groups[1].Value
string lastName = m.Groups[2].Value;

请参阅此处的演示。

Use Regular expressions:

string myString = "FirstName||Sam LastName||Jones Address||123 Main ST...";
string pattern = @"FirstName\|\|(\w+) LastName\|\|(\w+) ";
Match m = Regex.Match(myString, pattern);
string firstName = m.Groups[1].Value
string lastName = m.Groups[2].Value;

See its Demo here.

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筱果果 2024-11-12 08:22:18

我认为这可能比 .Split 方法更好。如果你有 ||在“Sam”和“LastName”之间，那么您肯定想要 .Split。事实上，这可能会更好。

    string inStr = "FirstName||Sam LastName||Jones Address||123 Main ST ";
    int fStart = inStr.IndexOf("FirstName") + "FirstName".Length + "||".Length;
    int fEnd = inStr.IndexOf(" LastName");

    string FirstName = inStr.Substring(fStart, fEnd - fStart);

I think this might work better than the .Split approach. If you had || between 'Sam' and 'LastName' then you'd certainly want to .Split. As it is, this might be better.

    string inStr = "FirstName||Sam LastName||Jones Address||123 Main ST ";
    int fStart = inStr.IndexOf("FirstName") + "FirstName".Length + "||".Length;
    int fEnd = inStr.IndexOf(" LastName");

    string FirstName = inStr.Substring(fStart, fEnd - fStart);

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内心荒芜 2024-11-12 08:22:18

我会将字符串拆分两次，一次在“”上，然后在 || 上再次拆分。获取名字和姓氏的值

string [] ary = s.Split(" ");
string [] key;
string firstname;
string lastname;
foreach (string val in ary ) {
    key = val.Split("||");
    if ( key[0] == "FirstName") {
         firstname = key[1];
}
if ( key[0] == "LastName") {
   lastname = key[1];
}
}

I would split the string twice once on " " and then again on || to get the values of first and last name

string [] ary = s.Split(" ");
string [] key;
string firstname;
string lastname;
foreach (string val in ary ) {
    key = val.Split("||");
    if ( key[0] == "FirstName") {
         firstname = key[1];
}
if ( key[0] == "LastName") {
   lastname = key[1];
}
}

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清风不识月 2024-11-12 08:22:18

str = Str.Split("||")[1].split(" ")[0] //Sam
str = Str.Split("||")[2].split(" ")[0] // Jones

str = Str.Split("||")[1].split(" ")[0] //Sam
str = Str.Split("||")[2].split(" ")[0] // Jones

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熊抱啵儿 2024-11-12 08:22:18

像这样的 string firstname = originalstring.substring(indexof("FirstName") + 11, ((indexof("LastName) - indexof("FirstName") + 11 )

这样你就可以到达第一个|| 之后的字母，直到“姓氏”之前的第一个字母，姓氏也是如此，您只需将名字与姓氏和姓氏与地址

编辑：我的错...它不是 substring.(indexOf... 但它是

originalString.Substring(origianlString.IndexOf("FirstName) + 11, (originalString.IndexOf("LastName") - originalString.IndexOf("FirstName") + 11) 并且在查找最后一个时name 不是 + 11 而是 10，因为 "LastName".Length + + "||".Length = 10

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~没有更多了~