src/main/java/com/itfsw/mybatis/generator/plugins/utils/XmlElementGeneratorTools.java
public static XmlElement generateSetsSelective(List<IntrospectedColumn> columns, String prefix) {
        return generateCommColumnsSelective(columns, prefix, false, 3);
    }
public static XmlElement generateSetsSelective(List<IntrospectedColumn> columns, String prefix) {
        return generateCommColumnsSelective(columns, prefix, false, 3);
    }
生成sets Selective Ele
@param columns
@param prefix
@return