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

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    return string;

}