从c＃中的字符串中查找字符串 [英] find string from string in c#

问题描述

如何从其他字符串中找到字符串，如>



字符串a =如何从anoher字符串中找到字符串;（此字符串或结果字符串应该不是静态的）



i希望结果就像查找字符串;

how can i find string from anoher string like>

string a= "how can i find string from anoher string";(this string or result string should not static)

i want result is like "find string";

推荐答案

string a = "this is a string";
string b = "is a";

bool isBinA = a.contains(b);

isBinA将在这种情况下成立。

isBinA will be true in this situation.

嗨chetan，



Firtly - 两个第一个解决方案都是为了你的简单目的，这很好。

我想建议你学习一些正则表达式，这些对于搜索目的非常有用，对于开发人员来说基本上是必备的工具。 />


查看一个小例子：

Hi chetan,

Firtly - Both the first solutions are of great for your simple purpose.
I want to suggest however, that you learn a bit about Regular Expressions, those will prove extremely useful for search purposes, and are basically a must tool for developers.

See a little example:

string TheText = "Here comes your bulk of text with the pattern to find.";
string WhatToFind_Pattern = "the pattern to find"; // all you have to do is learn some Regex Expressions (see links below the code block ;)
if (System.Text.RegularExpressions.Regex.IsMatch(TheText, WhatToFind_Pattern, System.Text.RegularExpressions.RegexOptions.IgnoreCase))
{
   // Do Stuff
}

如果你想进入正则表达式，有用的链接：

- 轻松学习正则表达式（RegEx） [ ^ ]

- 使用正则表达式进行验证变得简单 [ ^ ]

- Regex快速参考 [ ^ ]





干杯，

Edo

Useful links in case you want to get into Regex:
- Learn Regular Expressions (RegEx) with Ease[^]
- Validation with Regular Expressions Made Simple[^]
- Regex Quick Reference[^]


Cheers,
Edo

string a = "asdfghijklmnopqrstuvxz";
string b = "hijklm";
bool c = (a.IndexOf(b) > -1);

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