去除NSString里除数字外的所有字符

话不多说,上代码:

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NSString *test=@"2015/11/12;*1-年2+3年月";
NSString *newString = [[test componentsSeparatedByCharactersInSet: [[NSCharacterSet decimalDigitCharacterSet] invertedSet]] componentsJoinedByString:@""];
NSLog(@"%@", newString);

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