如何从postman中的json数组中获取元素？

Question

此代码找到第一个元素：

var jsonObject = xml2Json(responseBody);
pm.collectionVariables.set("VehicleVisit",jsonObject['soap:Envelope']['soap:Body'].findVehicleVisitsResponse.findVehicleVisitsResult.allVehicleVisits.WS_VehicleVisit[0].visitNumber);

这段代码找到最后一个元素：

var jsonObject = xml2Json(responseBody),
    vehicleVisitArray = jsonObject['soap:Envelope']['soap:Body'].findVehicleVisitsResponse.findVehicleVisitsResult.allVehicleVisits.WS_VehicleVisit;

pm.collectionVariables.set("VehicleVisit", vehicleVisitArray[vehicleVisitArray.length - 1].visitNumber);

我想以两种方式找到一些东西，我尝试在 for 循环中使用 if 条件和以下代码，但它没有用，有人可以帮忙吗？

var jsonObject = xml2Json(responseBody),
    vehicleVisitArray = jsonObject['soap:Envelope']['soap:Body'].findVehicleVisitsResponse.findVehicleVisitsResult.allVehicleVisits.WS_VehicleVisit;
    
    

    for(i = 0; i < vehicleVisitArray.length; i++)
    {
        if(vehicleVisitArray[i].visitNumber == vehicleVisitArray.visitNumber)
        {
            pm.collectionVariables.set("VehicleVisit", vehicleVisitArray[i].visitNumber);
        }
        else
        {
            pm.collectionVariables.set("VehicleVisit", vehicleVisitArray[vehicleVisitArray.length - 1].visitNumber);
        }
    }

Answer 1

var jsonObject = xml2Json(responseBody),
    vehicleVisitArray = jsonObject['soap:Envelope']['soap:Body'].findVehicleVisitsResponse.findVehicleVisitsResult.allVehicleVisits.WS_VehicleVisit;
    
    

    for(i = 0; i < vehicleVisitArray.length; i++)
    {
        if(vehicleVisitArray[i].visitNumber == vehicleVisitArray[0].visitNumber)
        {
            pm.collectionVariables.set("VehicleVisit", vehicleVisitArray[i].visitNumber);
        }
        else
        {
            pm.collectionVariables.set("VehicleVisit", vehicleVisitArray[vehicleVisitArray.length - 1].visitNumber);
        }
    }

您应该添加索引，因为 vehicleVisitArray 是一个数组，并且