iOS 过滤json字符串中的特殊字符

NSString *character = nil;

    for (int i=0; i<muStr.length; i++) {

        

        character = [muStr substringWithRange:NSMakeRange(i, 1)];

        if ([character isEqualToString:@"\n"]){

            

            [muStr deleteCharactersInRange:NSMakeRange(i, 1)];

        }

    }

    

    NSString *character1 = nil;

    for (int i=0; i<muStr.length; i++) {

        

        character1 = [muStr substringWithRange:NSMakeRange(i, 1)];

        if ([character isEqualToString:@"\r"]){

            

            [muStr deleteCharactersInRange:NSMakeRange(i, 1)];

        }

    }

+ (NSString *)delSpaceAndNewline:(NSString *)string;{

    

    

    

    NSMutableString *mutStr = [NSMutableString stringWithString:string];

    

    NSRange range = {0,mutStr.length};

    

    [mutStr replaceOccurrencesOfString:@" " withString:@"" options:NSLiteralSearch range:range];

    

    NSRange range2 = {0,mutStr.length};

    

    [mutStr replaceOccurrencesOfString:@"\n" withString:@"" options:NSLiteralSearch range:range2];

    

    return mutStr;

}