頁面代碼 <!--提現金額--> <li?ms-visible="test"> ????<div?class="item-content"> ????????<div?class="item-inner"> ????????????<div?class="item-title?label">提現金額：</div> ????????????<div?class="item-input"> ????????????????<input?id="tixian_num"?type="text"??name="tixian_num"?placeholder="請在這里輸入提現金額"/> ????????????</div> ????????</div> ????</div> </li> 外部的js文件內代碼 var?num?=?$("#tixian_num");//提現金額 num.onkeyup(clearNoNum(num)); function?clearNoNum(obj){ ????obj.value?=?obj.value.replace(/[^\d.]/g,"");??//清除“數字”和“.”以外的字符 ????obj.value?=?obj.value.replace(/\.{2,}/g,".");?//只保留第一個.?清除多余的 ????obj.value?=?obj.value.replace(".","$#$").replace(/\./g,"").replace("$#$","."); ????obj.value?=?obj.value.replace(/^(\-)*(\d+)\.(\d\d).*$/,'$1$2.$3');//只能輸入兩個小數 ????if(obj.value.indexOf(".")<?0?&&?obj.value?!=""){//以上已經過濾，此處控制的是如果沒有小數點，首位不能為類似于?01、02的金額 ????????obj.value=?parseFloat(obj.value); ????} }; 綁定不了，無法實現這樣。?請問哪里有問題