html表单操作

//表单阻止复制粘贴

<input class="pass" type="text" oncopy="return false" oncut="return false" placeholder="密  码：" title="password"></input>

 

//表单阻止重复提交

<input type="button" value="确定" onclick="this.disabled=true; this.form.submit();"/>

 

//空格提醒

<script type="text/javascript">
  function deal(form){
    for(i=0; i < form.length; i++){
      if(form.elements[i].value == ''){
        alert(form.elements[i].title + "不能为空");
      }
    }
  }
</script>

<form name="form1">
  <tr>
    <td>销售编号：</td>
    <td><input type="text" name="num" title="销售编号"></td>
  </tr>
  <input type="button" onClick="deal(this.form);" id="change" value="提交">
  <input type="reset" value="重置"/>
</form>

 

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参考
原文：https://blog.csdn.net/u012310056/article/details/78050985