$("#textboxid").on('input propertychange', function () {
    //perform operation
        });

它会工作得很好。

嗯…我认为你可以使用e.clipboardData来捕捉被粘贴的数据。如果不成功，看看这里。

$(this).live("paste", function(e) {
    alert(e.clipboardData); // [object Clipboard]
});

该方法使用jqueries contents().unwrap()。

First, detect the paste event Add a unique class to the tags that are already in the element into which we are pasting. After a given timeout scan through all the contents unwrapping tags that don't have the class that you set earlier. Note: This method does not remove self closing tags like See an example below. //find all children .find('*') and add the class .within .addClass("within") to all tags $('#answer_text').find('*').each(function () { $(this).addClass("within"); }); setTimeout(function() { $('#answer_text').find('*').each(function () { //if the current child does not have the specified class unwrap its contents $(this).not(".within").contents().unwrap(); }); }, 0);

实际上，您可以直接从事件中获取值。不过如何到达它有点迟钝。

如果你不想让它通过，则返回false。

$(this).on('paste', function(e) {

  var pasteData = e.originalEvent.clipboardData.getData('text')

});

为了跨平台兼容性，它应该处理oninput和onpropertychange事件:

$ (something).bind ("input propertychange", function (e) {
    // check for paste as in example above and
    // do something
})

将字段的原始值与更改后的值进行比较，然后扣除差值作为粘贴值，如何?这将正确地捕获粘贴的文本，即使字段中存在文本。

http://jsfiddle.net/6b7sK/

function text_diff(first, second) {
    var start = 0;
    while (start < first.length && first[start] == second[start]) {
        ++start;
    }
    var end = 0;
    while (first.length - end > start && first[first.length - end - 1] == second[second.length - end - 1]) {
        ++end;
    }
    end = second.length - end;
    return second.substr(start, end - start);
}
$('textarea').bind('paste', function () {
    var self = $(this);
    var orig = self.val();
    setTimeout(function () {
        var pasted = text_diff(orig, $(self).val());
        console.log(pasted);
    });
});