const listing = pm.variables.get('listing');
pm.variables.set('listing', listing);
console.log(listing)

const listings = pm.response.json()

console.log(listings)

const obj= listings;
const reference = "002234SL";
for (n in obj) {
if (obj[n].reference == reference){
sku = obj[n].sku;
break;
}}
console.log(sku)

好奇怪的 . 如果單一處理的話是可以. 如果 : const reference = "002234SL"; 是可以的