<input class="easyui-textbox" type="text" style="width: 100%" required="true" validType="numrange([0,999])" name="height" id="height" /> <script> $(function() { function getWeightRatioHeight() { var height=$("#height").textbox('getValue'); var weight=$("#weight").textbox('getValue'); if(height==''){ returnif(weight==''){ return } var weightRatioHeight=weight/(height/100); $("#weight_height").textbox('setValue',weightRatioHeight.toFixed(2)); } $('#height').textbox('textbox').bind('blur', function () { getWeightRatioHeight() }); //為textbox添加onblur事件 }) </script>