吃的额

```

https://github.com/baijunyao/thinkphp-bjyadmin

tp系列文章

$('#unit_price').change(function (){

var unit_num = $(this).val();

var gprice = $('#good_marketprice').val();

console.log(unit_num, gprice);

$('#max_buy').val(Math.ceil(gprice/unit_num));

```