我也面临着同样的问题。这个终于对我有用了

jQuery.fn.putCursorAtEnd =  = function() {

  return this.each(function() {

    // Cache references
    var $el = $(this),
        el = this;

    // Only focus if input isn't already
    if (!$el.is(":focus")) {
     $el.focus();
    }

    // If this function exists... (IE 9+)
    if (el.setSelectionRange) {

      // Double the length because Opera is inconsistent about whether a carriage return is one character or two.
      var len = $el.val().length * 2;

      // Timeout seems to be required for Blink
      setTimeout(function() {
        el.setSelectionRange(len, len);
      }, 1);

    } else {

      // As a fallback, replace the contents with itself
      // Doesn't work in Chrome, but Chrome supports setSelectionRange
      $el.val($el.val());

    }

    // Scroll to the bottom, in case we're in a tall textarea
    // (Necessary for Firefox and Chrome)
    this.scrollTop = 999999;

  });

};

我们可以这样称呼它:

var searchInput = $("#searchInputOrTextarea");

searchInput
  .putCursorAtEnd() // should be chainable
  .on("focus", function() { // could be on any event
    searchInput.putCursorAtEnd()
  });

它适用于safari, IE, Chrome, Mozilla。在移动设备上，我没有尝试过这种方法。

在这之后，我发现最好的方法是使用setSelectionRange函数，如果浏览器支持它;如果不是，则恢复使用Mike Berrow回答中的方法(即将值替换为本身)。

我还将scrollTop设置为一个高值，以防我们在一个垂直滚动的文本区域。(在Firefox和Chrome中，使用任意的高值似乎比$(this).height()更可靠。)

我已经把它作为一个jQuery插件。(如果你没有使用jQuery，我相信你仍然可以很容易地得到主旨。)

我在IE6, IE7, IE8, Firefox 3.5.5，谷歌Chrome 3.0, Safari 4.0.4, Opera 10.00中进行了测试。

它可以在jquery网站上作为PutCursorAtEnd插件使用。为方便起见，1.0版的代码如下:

// jQuery plugin: PutCursorAtEnd 1.0
// http://plugins.jquery.com/project/PutCursorAtEnd
// by teedyay
//
// Puts the cursor at the end of a textbox/ textarea

// codesnippet: 691e18b1-f4f9-41b4-8fe8-bc8ee51b48d4
(function($)
{
    jQuery.fn.putCursorAtEnd = function()
    {
    return this.each(function()
    {
        $(this).focus()

        // If this function exists...
        if (this.setSelectionRange)
        {
        // ... then use it
        // (Doesn't work in IE)

        // Double the length because Opera is inconsistent about whether a carriage return is one character or two. Sigh.
        var len = $(this).val().length * 2;
        this.setSelectionRange(len, len);
        }
        else
        {
        // ... otherwise replace the contents with itself
        // (Doesn't work in Google Chrome)
        $(this).val($(this).val());
        }

        // Scroll to the bottom, in case we're in a tall textarea
        // (Necessary for Firefox and Google Chrome)
        this.scrollTop = 999999;
    });
    };
})(jQuery);

适用于所有浏览器和所有情况:

function moveCursorToEnd(el) {
    window.setTimeout(function () {
            if (typeof el.selectionStart == "number") {
            el.selectionStart = el.selectionEnd = el.value.length;
        } else if (typeof el.createTextRange != "undefined") {
            var range = el.createTextRange();
            range.collapse(false);
            range.select();
        }
    }, 1);
}

如果您需要从onFocus事件处理程序移动光标，需要超时

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"/>

我从这里得到了最好的答案，并创建了一个在Chrome中工作良好的功能。

您需要将逻辑封装在一个超时中，因为您必须等待焦点完成后才能访问所选内容 要将光标放在末尾，选择起始点需要放在末尾 为了滚动到输入字段的末尾，scrollLeft需要匹配scrollWidth

/** * Upon focus, set the cursor to the end of the text input * @param {HTMLInputElement} inputEl - An HTML <input> element */ const setFocusEnd = (inputEl) => { setTimeout(() => { const { scrollWidth, value: { length } } = inputEl; inputEl.setSelectionRange(length, length); inputEl.scrollLeft = scrollWidth; }, 0); }; document .querySelector('input') .addEventListener('focus', (e) => setFocusEnd(e.target)); html, body { width: 100%; height: 100%; margin: 0; } body { display: flex; flex-direction: column; justify-content: center; align-items: center; } input:focus { background-color: hsla(240, 100%, 95%, 1.0); } <input type="text" placeholder="Search..." value="This is some really, really long text">

检查这个解决方案!

//fn setCurPosition $.fn.setCurPosition = function(pos) { this.focus(); this.each(function(index, elem) { if (elem.setSelectionRange) { elem.setSelectionRange(pos, pos); } else if (elem.createTextRange) { var range = elem.createTextRange(); range.collapse(true); range.moveEnd('character', pos); range.moveStart('character', pos); range.select(); } }); return this; }; // USAGE - Set Cursor ends $('#str1').setCurPosition($('#str1').val().length); // USAGE - Set Cursor at 7 position // $('#str2').setCurPosition(7); <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script> <p>Set cursor at any position</p> <p><input type="text" id="str1" value="my string here" /></p> <p><input type="text" id="str2" value="my string here" /></p>