The PHP dwt write jquery does not perform callbacks, HTML can execute callbacks, ask the great gods to teach.

PHP callback jquery

Template file dwt wrote the following JS code, why there is no callback, written in the HTML can be recalled

 function getVal() {        $.getJSON("bus_sel.php", {            sf_id : $("#sf_id").val()        }, function(json) {            alert(1111);            var ds_id = $("#ds_id");            $.each(json, function(index, array) {            alert("dddddd");                var option = ""                        + array['bus_terminal'] + "";                ds_id.append(option);            });        });    }    //下面是页面加载时自动执行一次getVal()函数     $().ready(function() {        getVal();        $("#sf_id").change(function() {//省份部分有变动时，执行getVal()函数             getVal();            //$("option", ds_id).remove(); //清空原有的选项，也可使用 ds_id.empty();         });    });

Ask the great God to teach you

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