document.querySelector(“输入”)。addEventListener('focus'， e => { Const {value} = e.target; e.target.setSelectionRange(价值。长度,value.length); })； <input value="my text" />

下面是我的答案的jsFiddle演示。演示使用CoffeeScript，但如果需要，可以将其转换为纯JavaScript。

JavaScript中重要的部分是:

var endIndex = textField.value.length;
if (textField.setSelectionRange) {
   textField.setSelectionRange(endIndex, endIndex);
}

我把这个答案贴出来是因为我已经为有同样问题的其他人写过了。这个答案不像上面的答案那样涵盖那么多的边缘情况，但它适合我，并且有一个jsFiddle演示可以玩。

下面是来自jsFiddle的代码，所以即使jsFiddle消失了，这个答案也会被保留:

moveCursorToEnd = (textField) ->
  endIndex = textField.value.length
  if textField.setSelectionRange
    textField.setSelectionRange(endIndex, endIndex)

jQuery ->
  $('.that-field').on 'click', ->
    moveCursorToEnd(this)

<div class="field">
    <label for="pressure">Blood pressure</label>:
    <input class="that-field" type="text" name="pressure" id="pressure" value="24">
</div>
<p>
    Try clicking in the text field. The cursor will always jump to the end.
</p>

body {
    margin: 1em;
}

.field {
    margin-bottom: 1em;
}

在jQuery中，这是

$(document).ready(function () {
  $('input').focus(function () {
    $(this).attr('value',$(this).attr('value'));
  }
}

我喜欢接受的答案很多，但它停止工作在Chrome。在Chrome浏览器中，光标要走到最后，需要改变输入值。解决方法如下:

<input id="search" type="text" value="mycurrtext" size="30" 
   onfocus="var value = this.value; this.value = null; this.value = value;" name="search"/>

我在IE中遇到了同样的问题(在通过RJS/prototype设置焦点后)。 当该字段已经有一个值时，Firefox已经在末尾留下了光标。IE将光标强制移到文本的开头。

我得出的解决方案如下:

<input id="search" type="text" value="mycurrtext" size="30" 
       onfocus="this.value = this.value;" name="search"/>

这在IE7和FF3中都有效，但在现代浏览器中不起作用(见评论)，因为没有指定UA必须覆盖这种情况下的值(根据元策略编辑)。

While this may be an old question with lots of answers, I ran across a similar issue and none of the answers were quite what I wanted and/or were poorly explained. The issue with selectionStart and selectionEnd properties is that they don't exist for input type number (while the question was asked for text type, I reckon it might help others who might have other input types that they need to focus). So if you don't know whether the input type the function will focus is a type number or not, you cannot use that solution.

跨浏览器和所有输入类型的解决方案相当简单:

获取输入值并将其存储在变量中 关注输入 将输入值设置为存储值

这样，光标就位于输入元素的末尾。 所以你所要做的就是这样(使用jquery，提供一个人希望关注的元素选择器是通过点击元素的“data-focus-element”数据属性和函数在点击后执行)。foo的元素):

$('.foo').click(function() {
    element_selector = $(this).attr('data-focus-element');
    $focus = $(element_selector);
    value = $focus.val();
    $focus.focus();
    $focus.val(value);
});

Why does this work? Simply, when the .focus() is called, the focus will be added to the beginning of the input element (which is the core problem here), ignoring the fact, that the input element already has a value in it. However, when the value of an input is changed, the cursor is automatically placed at the end of the value inside input element. So if you override the value with the same value that had been previously entered in the input, the value will look untouched, the cursor will, however, move to the end.