我是JavaScript的新手，请耐心等待我。我正在尝试使这个小“游戏”在将卡片拖到放置箱中的情况下起作用，当您将小丑卡放到其中时说“胜利”，否则说其他卡片“背叛”。放下小丑时，除了说“胜利”的那部分外，其他所有东西都很好。我觉得我已经尝试了一切。小丑卡是$（＃black_joker）
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Drag and Drop</title>
<link rel="stylesheet" href="dragdrop.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/jqueryui/1.12.1/jquery-ui.min.js"></script>
</head>
<body>
<h1>Find the Joker and eliminate him!</h1>
<br>
<input type="button" value="Deal!" id="dealDeck">
<br>
<br>
<br>
<br>
<br>
<div id='dropZone' class='dropZone'> <center>Find the joker card and drop it here to get rid of him once and for all! </center></div>
<script src="dragdrop.js"></script>
</body>
</html>
// JAVASCRIPT
$(document).ready(function () {
$(init);
function init() {
$('.dropZone').droppable({
drop: handleDropEvent
});
}
for (var a=0, all = 53; a < all; a++){
$('#dealDeck').click(function () {
dealCard(randomCard());
});
}
var cardsInDeck = new Array();
var numberOfCardsInDeck = 53;
cardsInDeck[0] = "C1";
cardsInDeck[1] = "C2";
cardsInDeck[2] = "C3";
cardsInDeck[3] = "C4";
cardsInDeck[4] = "C5";
cardsInDeck[5] = "C6";
cardsInDeck[6] = "C7";
cardsInDeck[7] = "C8";
cardsInDeck[8] = "C9";
cardsInDeck[9] = "C10";
cardsInDeck[10] = "C11";
cardsInDeck[11] = "C12";
cardsInDeck[12] = "C13";
cardsInDeck[13] = "D1";
cardsInDeck[14] = "D2";
cardsInDeck[15] = "D3";
cardsInDeck[16] = "D4";
cardsInDeck[17] = "D5";
cardsInDeck[18] = "D6";
cardsInDeck[19] = "D7";
cardsInDeck[20] = "D8";
cardsInDeck[21] = "D9";
cardsInDeck[22] = "D10";
cardsInDeck[23] = "D11";
cardsInDeck[24] = "D12";
cardsInDeck[25] = "D13";
cardsInDeck[26] = "H1";
cardsInDeck[27] = "H2";
cardsInDeck[28] = "H3";
cardsInDeck[29] = "H4";
cardsInDeck[30] = "H5";
cardsInDeck[31] = "H6";
cardsInDeck[32] = "H7";
cardsInDeck[33] = "H8";
cardsInDeck[34] = "H9";
cardsInDeck[35] = "H10";
cardsInDeck[36] = "H11";
cardsInDeck[37] = "H12";
cardsInDeck[38] = "H13";
cardsInDeck[39] = "S1";
cardsInDeck[40] = "S2";
cardsInDeck[41] = "S3";
cardsInDeck[42] = "S4";
cardsInDeck[43] = "S5";
cardsInDeck[44] = "S6";
cardsInDeck[45] = "S7";
cardsInDeck[46] = "S8";
cardsInDeck[47] = "S9";
cardsInDeck[48] = "S10";
cardsInDeck[49] = "S11";
cardsInDeck[50] = "S12";
cardsInDeck[51] = "S13";
cardsInDeck[52] = "black_joker";
function dealCard(i) {
if (numberOfCardsInDeck == 0) return false;
var img = document.createElement("img");
img.src = "http://deetito.com/images/" + cardsInDeck[i] + ".png";
img.id = cardsInDeck[i];
img.width = 100;
img.height = 125;
document.body.appendChild(img);
$('#C1').draggable();
$('#C2').draggable();
$('#C3').draggable();
$('#C4').draggable();
$('#C5').draggable();
$('#C6').draggable();
$('#C7').draggable();
$('#C8').draggable();
$('#C9').draggable();
$('#C10').draggable();
$('#C11').draggable();
$('#C12').draggable();
$('#C13').draggable();
$('#D1').draggable();
$('#D2').draggable();
$('#D3').draggable();
$('#D4').draggable();
$('#D5').draggable();
$('#D6').draggable();
$('#D7').draggable();
$('#D8').draggable();
$('#D9').draggable();
$('#D10').draggable();
$('#D11').draggable();
$('#D12').draggable();
$('#D13').draggable();
$('#H1').draggable();
$('#H2').draggable();
$('#H3').draggable();
$('#H4').draggable();
$('#H5').draggable();
$('#H6').draggable();
$('#H7').draggable();
$('#H8').draggable();
$('#H9').draggable();
$('#H10').draggable();
$('#H11').draggable();
$('#H12').draggable();
$('#H13').draggable();
$('#S1').draggable();
$('#S2').draggable();
$('#S3').draggable();
$('#S4').draggable();
$('#S5').draggable();
$('#S6').draggable();
$('#S7').draggable();
$('#S8').draggable();
$('#S9').draggable();
$('#S10').draggable();
$('#S11').draggable();
$('#S12').draggable();
$('#S13').draggable();
$('#black_joker').draggable();
removeCard(i);
}
function randomCard() {
return Math.floor(Math.random() * numberOfCardsInDeck);
}
function handleDropEvent(event, ui) {
var card = ui.draggable;
if (card == 'black_joker') {
$('#dropZone').html('victory!');}
else {
$('#dropZone').html('betrayal!');}
/*$('#dropZone').droppable({
drop: function(event, ui) {
ui.draggable.remove();
}
});*/
$("#dropZone").on('mouseover', function() {
//alert('bye draggable!');
//ui.draggable.draggable('disable');
//$(this).droppable('disable');
ui.draggable.remove();
})
}
function removeCard(c) {
// simply make every higher numbered card move down 1
for (j = c; j <= numberOfCardsInDeck - 2; j++) {
cardsInDeck[j] = cardsInDeck[j + 1];
}
numberOfCardsInDeck--;
}
});
我相信您正在将对象与字符串进行比较。ui.draggable应该是jQuery对象
let card = ui.draggable.attr("id");
将其与您的ID或您想使用的其他属性进行比较