如何从 nsstring 中删除子字符串? [英] How do i remove a substring from an nsstring?

问题描述

好的，假设我有字符串hello my name is donald"

Ok, say I have the string "hello my name is donald"

现在，我想删除从hello"到is"的所有内容问题是，my name"可以是任何东西，也可以是他的儿子"

Now, I want to remove everything from "hello" to "is" The thing is, "my name" could be anything, it could also be "his son"

所以基本上，简单地执行 stringByReplacingOccurrencesOfString 是行不通的.

So basically, simply doing stringByReplacingOccurrencesOfString won't work.

(我有 RegexLite)

(I do have RegexLite)

我该怎么做?

推荐答案

像下面这样使用它会帮助你

Use like below it will help you

NSString *hello = @"his is name is isName";
NSRange rangeSpace = [hello rangeOfString:@" " 
                                  options:NSBackwardsSearch];
NSRange isRange = [hello rangeOfString:@"is" 
                               options:NSBackwardsSearch 
                                 range:NSMakeRange(0, rangeSpace.location)];

NSString *finalResult = [NSString stringWithFormat:@"%@ %@",[hello substringToIndex:[hello rangeOfString:@" "].location],[hello substringFromIndex:isRange.location]];
NSLog(@"finalResult----%@",finalResult);

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