如何有选择地修剪NSMutableString? [英] How to selectively trim an NSMutableString?

问题描述

我想知道如何选择性地修剪NSMutableString.例如，如果我的字符串是"MobileSafari_2011-09-10-155814_Jareds-iPhone.plist"，我该如何以编程方式剪裁除单词"MobileSafari"以外的所有内容?

I would like to know how to selectively trim an NSMutableString. For example, if my string is "MobileSafari_2011-09-10-155814_Jareds-iPhone.plist", how would I programatically trim off everything except the word "MobileSafari"?

注意:鉴于上述以编程方式，我希望该解决方案仍然有效，即使将单词"MobileSafari"更改为"Youtube"，或该单词"Jared's-iPhone"更改为"Angela's-iPhone".

Note : Given the term programatically above, I expect the solution to work even if the word "MobileSafari" is changed to "Youtube" for example, or the word "Jared's-iPhone" is changed to "Angela's-iPhone".

非常感谢您的帮助！

推荐答案

测试代码:100％可行

NSString *inputString=@"MobileSafari_2011-09-10-155814_Jareds-iPhone.plist";

NSArray *array= [inputString componentsSeparatedByString:@"_"];

if ([array count]>0) {

    NSString *resultedString=[array objectAtIndex:0];


    NSLog(@" resultedString IS - %@",resultedString);



}

输出:

resultedString IS - MobileSafari

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