现在是最后一段基本上未经测试的代码。最后，我不确定我需要做哪些操作，因此想扩展功能，以应对我的客户将来可能对我提出的任何问题。经过两天的努力，我很兴奋[\'*\'，\'+\']这个案子成功了，我想分享它，希望它能帮助其他人。

// ************      Gravity Forms Dynamic List Calculations ************** //
//EX:  listFieldColumnTotal( 6, 120, 2, 3, 4,\'*\', \'+\', 47, true );
//EX:  listFieldColumnTotal( FormID, listContainerID, FirstRowOperand, SecondRowOperand, RowResult, RowOperator, ColumnOperator, ColumnOperatorFieldID, isCurrency );;
//The elements are described in the function, but are described in order as follows:
//
//Form ID (ex. gform_wrapper_6)
//ListContainerID (ex. #field_6_120)
//FirstRowOperand: The first column we want to do math with
//SecondRowOperand: The first column we want to do math with
//RowResult: The column we want to store the result of the: FirstRowOperand [RowOperator] SecondRowOperand
//RowOperator: \'*\',\'+\',\'-\',\'/\'
//ColumnOperator: \'*\',\'+\',\'-\',\'/\'
//ColumnOperatorFieldID (ex. .gfield_list_7_cell2): "Take all of the results stored in the RowResul fields and [ColumnOperator] them together and put the result here"
//defines whether or not we\'re using a currency (I didn\'t experiment with this value set to "false", but I imagine it works the same
jQuery(document).ready(function(){
          function calculateLFColumnTotal(formId, columnClassA,columnClassB, columnClassResult, operatorAB,operatorR, totalFieldId, currency) {
            var subTotal = 0,
                columnTotal = 0,
                preField = \'#field_\' + formId + \'_\' + totalFieldId,             
                totalField = jQuery(\'#input_\' + formId + \'_\' + totalFieldId),               
                cellValue;                
                currency = (currency && typeof gf_global !== \'undefined\');

            //Go through and get all of the values from the first column
            var listA = [];            
            jQuery(columnClassA).each(function () {
                cellValueA = jQuery(this).val();
                cellValueA = (currency) ? gformToNumber(cellValueA) : cellValueA;
                listA.push(cellValueA);                
            });

            //Go through and get all of the values from the second column
            var listB = [];            
            jQuery(columnClassB).each(function () {
                cellValueB = jQuery(this).val();
                cellValueB = (currency) ? gformToNumber(cellValueB) : cellValueB;
                listB.push(cellValueB);               
            });

            
            //Do the appropriate arithmetic on first column and second column values
            var i = 0;
            jQuery(columnClassResult).each(function () {
                                   
                    switch(operatorAB){
                    case "*":
                        subTotal = parseFloat(listA[i]) * parseFloat(listB[i]);
                        break;
                    case "+":
                        subTotal = parseFloat(listA[i]) + parseFloat(listB[i]);
                        break;
                    case "-":
                        subTotal = parseFloat(listA[i]) - parseFloat(listB[i]);
                        break;                      
                    case "/":
                        subTotal = parseFloat(listA[i]) / parseFloat(listB[i]);
                        break;
                    default:
                        subTotal = parseFloat(listA[i]) + parseFloat(listB[i]);
                        break;
                    }

                jQuery(this).val(subTotal);
                i += 1;             
            });


             //Do the appropriate arithmetic on all of the resulting values
             jQuery(columnClassResult).each(function () {
                    cellValue = jQuery(this).val();
                    cellValue = (currency) ? gformToNumber(cellValue) : cellValue;
                           
                    switch(operatorR){
                    case "*":
                        columnTotal *= parseFloat(cellValue) || 0;
                        break;
                    case "+":
                        columnTotal += parseFloat(cellValue) || 0;
                        break;
                    case "-":
                        columnTotal -= parseFloat(cellValue) || 0;
                        break;                      
                    case "/":
                        columnTotal /= parseFloat(cellValue) || 0;
                        break;
                    default:
                        columnTotal += parseFloat(cellValue) || 0;
                        break;
                    }       
            });

        
            if (jQuery(preField).hasClass(\'gfield_price\')) {
                columnTotal = gformFormatMoney(columnTotal);
                if (jQuery(preField + \' input\').length > 1) {
                    totalField.html(columnTotal);
                    totalField = jQuery(\'input[name="input_\' + totalFieldId + \'.2"]\');

                }
            } else {
                columnTotal = (currency) ? gformFormatMoney(columnTotal) : columnTotal;
            }

            totalField.val(columnTotal);
            gformCalculateTotalPrice(formId);

        }

    
        function listFieldColumnTotal(formId, fieldId, columnOperandA, columnOperandB, columnResult, operatorAB, operatorR, totalFieldId, currency) {
            var listField = \'#field_\' + formId + \'_\' + fieldId,
                columnClassA = \'.gfield_list_\' + fieldId + \'_cell\' + columnOperandA + \' input\';
                columnClassB = \'.gfield_list_\' + fieldId + \'_cell\' + columnOperandB + \' input\';
                columnClassResult = \'.gfield_list_\' + fieldId + \'_cell\' + columnResult + \' input\';
                
            jQuery(listField).on(\'focusout\', columnClassA, function () {

                if (currency && typeof gf_global !== \'undefined\') {
                    gformFormatPricingField(this);
                }
                calculateLFColumnTotal(formId, columnClassA,columnClassB, columnClassResult, operatorAB,operatorR, totalFieldId, currency);

            });

            jQuery(listField).on(\'focusout\',columnClassB, function () {

                if (currency && typeof gf_global !== \'undefined\') {
                    gformFormatPricingField(this);
                }
                calculateLFColumnTotal(formId, columnClassA,columnClassB, columnClassResult, operatorAB,operatorR, totalFieldId, currency);

            });

            jQuery(listField).on(\'focusout\',columnClassResult, function () {

                if (currency && typeof gf_global !== \'undefined\') {
                    gformFormatPricingField(this);
                }
                calculateLFColumnTotal(formId, columnClassA,columnClassB, columnClassResult, operatorAB,operatorR, totalFieldId, currency);

            });

            jQuery(listField).on(\'click\', \'.add_list_item\', function () {
                jQuery(listField + \' .delete_list_item\').removeProp(\'onclick\');
            });

            jQuery(listField).on(\'click\', \'.delete_list_item\', function () {
                gformDeleteListItem(this, 0);
                calculateLFColumnTotal(formId,columnClassA,columnClassB, columnClassResult, operatorAB, operatorR, totalFieldId, currency);
            });
          }

 // **Edit this line to reflect your situation!
 listFieldColumnTotal( 1, 22, 2, 3, 4,\'*\', \'+\', 50, true );


});