如何找到两个字符串之间的子串？

本文介绍了如何找到两个字符串之间的子串？的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我有一个字符串你好......你怎么样

I have a string "hi how are... you"

我想在你之前和之后找到子字符串..

I want to find the Sub-string after how and before you..

如何在目标c中执行此操作？

How to do this in objective c?

推荐答案

查找两者的范围字符串并返回其间的子字符串：

Find the range of the two strings and return the substring in between:

NSString *s = @"hi how are... you"; NSRange r1 = [s rangeOfString:@"how"]; NSRange r2 = [s rangeOfString:@"you"]; NSRange rSub = NSMakeRange(r1.location + r1.length, r2.location - r1.location - r1.length); NSString *sub = [s substringWithRange:rSub];