Objective c 如何在Objective c中修剪字符串中的特殊字符

我想修剪字符串中出现的特殊字符

String has : prevs: Case Number ____________________ 提前谢谢

试试这个：

NSString *stringWithoutDash = [yourString stringByReplacingOccurrencesOfString:@"-" withString:@""];

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使用正则表达式，模式

[\\s\uz]{4，}

将搜索4个或更多的空格或下划线字符

NSString *trimmedString = [previousString2 stringByReplacingOccurrencesOfString:@"[\\s_]{4,}" withString:@"" options:NSRegularExpressionSearch range:NSMakeRange(0, previousString2.length)];

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如果下划线字符真的是破折号，请在模式中重新放置该字符。

您可以使用下面的代码删除特殊字符串

NSString *yourString = @"This is your string with speical character --------";
NSCharacterSet *removedCharacterSet = [NSCharacterSet characterSetWithCharactersInString:@"--------"];
NSString *finalString = [[yourString componentsSeparatedByCharactersInSet:removedCharacterSet] componentsJoinedByString:@""];
NSLog (@"Your final string : %@", finalString);

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@谢谢，它起作用了

NSString *trimmedString = [previousString2 stringByReplacingOccurrencesOfString:@"[\\s_]{4,}" withString:@"" options:NSRegularExpressionSearch range:NSMakeRange(0, previousString2.length)];

NSString *yourString = @"This is your string with speical character --------";
NSCharacterSet *removedCharacterSet = [NSCharacterSet characterSetWithCharactersInString:@"--------"];
NSString *finalString = [[yourString componentsSeparatedByCharactersInSet:removedCharacterSet] componentsJoinedByString:@""];
NSLog (@"Your final string : %@", finalString);