ios -过滤字符串特殊字符

//过滤 " [ ] "

+ (NSString *)onTwoCommseparatedWithString:(NSString *)string

{

    //过滤 " [ ] "

    string = [string stringByTrimmingCharactersInSet:[NSCharacterSet characterSetWithCharactersInString:@"""]];

    string = [string stringByTrimmingCharactersInSet:[NSCharacterSet characterSetWithCharactersInString:@"["]];

    string = [string stringByTrimmingCharactersInSet:[NSCharacterSet characterSetWithCharactersInString:@"""]];

    string = [string stringByTrimmingCharactersInSet:[NSCharacterSet characterSetWithCharactersInString:@"]"]];

    string = [string stringByReplacingOccurrencesOfString:@""" withString:@""];

    string = [string stringByReplacingOccurrencesOfString:@"\" withString:@""];

//    string = [string stringByReplacingOccurrencesOfString:@"/" withString:@"/"];//替换字符

    

 

    

    return string;

}