js 中标签的id名称不能和方法名一样,
<tr> <td><input type="button" id="login" value="登录 " onclick="loginuser()"/></td> <td><input type="button" name = "register" value="注册"/></td> </tr>
Uncaught TypeError: upload is not a function at HTMLInputElement.onclick
原文:https://www.cnblogs.com/zhulina-917/p/11426605.html