@Override
    public String toString() {
        return "ResultItems{" +
                "fields=" + fields +
                ", request=" + request +
                ", skip=" + skip +
                '}';
    }
Set whether to skip the result.<br>
Result which is skipped will not be processed by Pipeline.

@param skip whether to skip the result
@return this
webmagic-core/src/main/java/us/codecraft/webmagic/ResultItems.java