如何 Trim 字符串中的特殊字符 Objective c

Question

我想trim字符串中出现特殊字符

String  has :    
prevs: Case Number                                                                    
____________________

在此我想从这个字符串中删除 -------- 这个破折号。我试过这样:

NSCharacterSet *trim = [NSCharacterSet characterSetWithCharactersInString:@"-"];
    NSString *stringNew = [[previousString2 componentsSeparatedByCharactersInSet:trim] componentsJoinedByString:@""];

提前致谢！

Answer 1

试试这个：

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

Answer 2

NSString *trimedString = [myString stringByReplacingOccurrencesOfString:@"-" withString:@""];

Answer 3

使用正则表达式，模式 [\s_]{4,} 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)];

如果 下划线 字符确实是破折号，请替换模式中的字符。

Answer 4

您可以使用以下代码删除您的特殊字符串。

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

如何 Trim 字符串中的特殊字符 Objective c

How to Trim special Characters in a String in Objective c

trim

objective-c

nsstring