尝试这样的事情：

Try something like this:

（' ＃pickup_location'）。on（' change'， function （）{
var selectedAddress =

('#pickup_location').on('change', function() { var selectedAddress =

（ this ）。find（' 选项：选中'）。text（）;
if （！selectedAddress）{ return ;}

var addressParts = selectedAddress.split（' ，'）;
var companyName，address1，addre ss2，city，zip;

switch （addressParts.length）{
case 4 ：{
companyName = addressParts [ 0 ];
address1 = addressParts [ 1 ];
address2 = ' ';
city = addressParts [ 2 ];
zip = addressParts [ 3 ];
break ;
}
case 5 ：{
companyName = addressParts [ 0 ];
address1 = addressParts [ 1 ];
address2 = addressParts [ 2 ];
city = addressParts [ 3 ];
zip = addressParts [ 4 ];
break ;
}
默认：{
alert（' 无效地址：' + selectedAddress）;
return ;
}
}

document .getElementById（'' shipping_company'）。value = companyName;
document .getElementById（' shipping_address_1').value = address1;
document .getElementById（' shipping_address_2').value = address2;
document .getElementById（' shipping_city').value = city;
document .getElementById（' shipping_postcode').value = zip;
}）;

(this).find('option:selected').text(); if (!selectedAddress) { return; } var addressParts = selectedAddress.split(','); var companyName, address1, address2, city, zip; switch (addressParts.length) { case 4: { companyName = addressParts[0]; address1 = addressParts[1]; address2 = ''; city = addressParts[2]; zip = addressParts[3]; break; } case 5: { companyName = addressParts[0]; address1 = addressParts[1]; address2 = addressParts[2]; city = addressParts[3]; zip = addressParts[4]; break; } default: { alert('Invalid address: ' + selectedAddress); return; } } document.getElementById('shipping_company').value = companyName; document.getElementById('shipping_address_1').value = address1; document.getElementById('shipping_address_2').value = address2; document.getElementById('shipping_city').value = city; document.getElementById('shipping_postcode').value = zip; });

更新的演示 [ ^ ]