现代的方法

简单地使你的输入为只读，然后聚焦，删除它。这是一种非常简单的方法，浏览器不会填充只读输入。因此，此方法被接受，并且永远不会被将来的浏览器更新覆盖。

<input type="text" onfocus="this.removeAttribute('readonly');" readonly />

下一部分是可选的。相应地设置输入样式，使其看起来不像只读输入。

input[readonly] {
     cursor: text;
     background-color: #fff;
}

工作示例

防止用户名(或电子邮件)和密码自动完成:

<input type="email" name="email"><!-- Can be type="text" -->
<input type="password" name="password" autocomplete="new-password">

---

防止自动完成字段(可能不起作用):

<input type="text" name="field" autocomplete="nope">

解释:

Autocomplete仍然适用于<input>，尽管有Autocomplete ="off"，但你可以将off更改为随机字符串，如nope。

---

其他禁用字段自动补全的“解决方案”(这不是正确的方法，但它是有效的):

1.

HTML:

<input type="password" id="some_id" autocomplete="new-password">

JS (onload):

(function() {
    var some_id = document.getElementById('some_id');
    some_id.type = 'text';
    some_id.removeAttribute('autocomplete');
})();

或者使用jQuery:

$(document).ready(function() {
    var some_id = $('#some_id');
    some_id.prop('type', 'text');
    some_id.removeAttr('autocomplete');
});

---

2.

HTML:

<form id="form"></form>

JS (onload):

(function() {
    var input = document.createElement('INPUT');
    input.type = 'text';
    document.getElementById('form').appendChild(input);
})();

或者使用jQuery:

$(document).ready(function() {
    $('<input>', {
        type: 'text'
    }).appendTo($('#form'));
});

---

使用jQuery添加多个字段:

function addField(label) { var div = $('<div>'); var input = $('<input>', { type: 'text' }); if(label) { var label = $('<label>', { text: label }); label.append(input); div.append(label); } else { div.append(input); } div.appendTo($('#form')); } $(document).ready(function() { addField(); addField('Field 1: '); }); <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <form id="form"></form>

---

适用于:

铬:49 + Firefox: 44 +

[2021年适用于Chrome(v88, 89, 90)， Firefox, Brave, Safari] 旧的答案已经写在这里，将适用于试验和错误，但大多数 他们没有链接到任何官方文件或什么Chrome不得不说这一点 的事。

问题中提到的问题是因为Chrome的自动填充功能，这里是Chrome在这个bug链接中的立场- https://bugs.chromium.org/p/chromium/issues/detail?id=468153#c164

简单地说，有两种情况-

[CASE 1]: Your input type is something other than password. In this case, the solution is simple, and has three steps. Add name attribute to input name should not start with a value like email or username, otherwise Chrome still ends up showing the dropdown. For example, name="emailToDelete" shows the dropdown, but name="to-delete-email" doesn't. Same applies for autocomplete attribute. Add autocomplete attribute, and add a value which is meaningful for you, like new-field-name It will look like this, and you won't see the autofill for this input again for the rest of your life - <input type="text/number/something-other-than-password" name="x-field-1" autocomplete="new-field-1" /> [CASE 2]: input type is password Well, in this case, irrespective of your trials, Chrome will show you the dropdown to manage passwords / use an already existing password. Firefox will also do something similar, and same will be the case with all other major browsers. [1] In this case, if you really want to stop the user from seeing the dropdown to manage passwords / see a securely generated password, you will have to play around with JS to switch input type, as mentioned in the other answers of this question.

[1]关于关闭自动补全的详细MDN文档- https://developer.mozilla.org/en-US/docs/Web/Security/Securing_your_site/Turning_off_form_autocompletion

对于这个问题，我使用了这个css解决方案。这对我很有用。

input{
  text-security:disc !important;
  -webkit-text-security:disc !important;
  -moz-text-security:disc !important;
}

好吧，有点晚了，但似乎有一点关于自动补全应该和不应该工作的误解。根据HTML规范，用户代理(在这种情况下Chrome)可以覆盖自动完成:

https://www.w3.org/TR/html5/forms.html#autofilling-form-controls:-the-autocomplete-attribute

A user agent may allow the user to override an element's autofill field name, e.g. to change it from "off" to "on" to allow values to be remembered and prefilled despite the page author's objections, or to always "off", never remembering values. However, user agents should not allow users to trivially override the autofill field name from "off" to "on" or other values, as there are significant security implications for the user if all values are always remembered, regardless of the site's preferences.

所以在Chrome的例子中，开发者基本上说“我们将把这个留给用户来决定他们是否想要自动完成工作。”如果你不想要它，就不要在浏览器中启用它”。

然而，在我看来，这对他们来说似乎有点过于热情了，但事实就是如此。规范还讨论了这样做的潜在安全影响:

The "off" keyword indicates either that the control's input data is particularly sensitive (for example the activation code for a nuclear weapon); or that it is a value that will never be reused (for example a one-time-key for a bank login) and the user will therefore have to explicitly enter the data each time, instead of being able to rely on the UA to prefill the value for him; or that the document provides its own autocomplete mechanism and does not want the user agent to provide autocompletion values.

所以，在经历了和其他人一样的挫折之后，我找到了一个适合我的解决方案。它类似于autocomplete="false"答案。

Mozilla的一篇文章正是针对这个问题:

https://developer.mozilla.org/en-US/docs/Web/Security/Securing_your_site/Turning_off_form_autocompletion

在某些情况下，即使autocomplete属性被设置为关闭，浏览器也会继续建议自动补全值。这种出乎意料的行为可能会让开发人员感到困惑。真正强制不完成的技巧是为属性分配一个随机字符串

所以下面的代码应该可以工作:

autocomplete="nope"

以下每一项也应如此:

autocomplete="false"
autocomplete="foo"
autocomplete="bar"

我看到的问题是浏览器代理可能足够聪明，可以学习自动完成属性，并在下次看到表单时应用它。如果它确实这样做了，我所能看到的解决问题的唯一方法是在生成页面时动态更改自动完成属性值。

值得一提的一点是，许多浏览器会忽略登录字段(用户名和密码)的自动完成设置。正如Mozilla文章所述:

For this reason, many modern browsers do not support autocomplete="off" for login fields. If a site sets autocomplete="off" for a form, and the form includes username and password input fields, then the browser will still offer to remember this login, and if the user agrees, the browser will autofill those fields the next time the user visits this page. If a site sets autocomplete="off" for username and password input fields, then the browser will still offer to remember this login, and if the user agrees, the browser will autofill those fields the next time the user visits this page. This is the behavior in Firefox (since version 38), Google Chrome (since 34), and Internet Explorer (since version 11).

最后是关于属性是属于form元素还是input元素的一些信息。规范再次给出了答案:

如果省略autocomplete属性，则使用与元素表单所有者的autocomplete属性状态对应的默认值(“on”或“off”)。如果没有表单所有者，则使用值“on”。

所以。把它放在表单上应该适用于所有输入字段。将它放在单个元素上应该只应用于该元素(即使表单上没有)。如果完全没有设置autocomplete，则默认为on。

总结

禁用整个表单的自动完成功能:

<form autocomplete="off" ...>

或者如果你动态地需要这样做:

<form autocomplete="random-string" ...>

禁用单个元素的自动补全功能(无论是否存在表单设置)

<input autocomplete="off" ...>

或者如果你动态地需要这样做:

<input autocomplete="random-string" ...>

请记住，某些用户代理甚至可以覆盖您禁用自动补全的最艰难的尝试。

Autocomplete =off在现代浏览器中基本上被忽略了——主要是由于密码管理器等。

你可以尝试添加这个autocomplete="new-password"，它不是所有浏览器都完全支持，但在一些浏览器上是有效的