Question

<img id="myImg">
<script>
    var deck = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52];

    function myFunction() {
        deck.sort(function(a, b) {
            return 0.5 - Math.random()
        });
        deck.shift();
        document.getElementById("demo").innerHTML = deck;
        document.getElementById("player1").innerHTML = deck[0];

        if (deck[0] == '1') {
            document.getElementById("myImg").style.display = 'inline';
        } else if (deck[0] == '2') {
            alert("I am an alert box!");

这是我得到的代码。我需要它来在特定位置显示图像。

Answer 1

＆lt; p＆gt;一些错误：＆LT;李＆GT;缺少＆lt; code＆gt;}＆lt; / code＆gt;＆lt; / p＆gt; ＆lt; p＆gt;请参阅代码段＆lt; / p＆gt; ＆lt; p＆gt;注意：我添加了一个图像并将其display属性设置为none。＆LT; / p为H. ＆lt; p＆gt;如果该代码段运行了几次，并且您很幸运能够获得包含第一个和第二个元素的数组，并且＆lt; code＆gt; 1＆lt; / code＆gt;和＆lt; code＆gt; 2＆lt; / code＆gt;您将注意到if语句已执行＆lt; / p＆gt; ＆lt; p＆gt;＆lt; div class =＆＃34; snippet＆＃34;数据琅=＆＃34; JS＆＃34;数据隐藏=＆＃34;假＆＃34;数据的控制台=＆＃34;真＆＃34;数据巴贝尔=＆＃34;假＆＃34;＆GT;＆＃13; ＆lt; div class =＆＃34; snippet-code＆＃34;＆gt;＆＃13; ＆lt; pre class =＆＃34; snippet-code-css lang-css prettyprint-override＆＃34;＆gt;＆lt; code＆gt; img {＆＃13; display：none;＆＃13; }＆LT; /代码＆GT;＆LT; /预＆GT;＆＃13; ＆lt; pre class =＆＃34; snippet-code-html lang-html prettyprint-override＆＃34;＆gt;＆lt; code＆gt;＆lt; img id =＆＃34; myImg＆＃34; SRC =＆＃34; HTTPS：//encrypted-tbn2.gstatic.com/images Q = TBN：ANd9GcTkb6sdx_0T-5Pb34CB1_x1ILIQIErjC5C1kA8cIrxDclawMiMK＆＃34;＆GT;＆＃13; ＆lt; div id =＆＃34; demo＆＃34;＆gt;＆lt; / div＆gt;＆＃13; ＆lt; div id =＆＃34; player1＆＃34;＆gt;＆lt; / div＆gt;＆＃13; ＆LT;脚本＆GT;＆＃13; var deck = [1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23， 24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48， 49,50,51,52];＆＃13; ＆＃13; function myFunction（）{＆＃13; deck.sort（function（a，b）{＆＃13; 返回0.5 - Math.random（）＆＃13; }）;＆＃13; deck.shift（）;＆＃13; document.getElementById（＆＃34; demo＆＃34;）。innerHTML = deck;＆＃13; document.getElementById（＆＃34; player1＆＃34;）。innerHTML = deck [0];＆＃13; if（deck [0] == 1）{＆＃13; document.getElementById（＆＃34; myImg＆＃34;）。style.display =＆＃39; inline＆＃39;;＆＃13; } else if（deck [0] == 2）{＆＃13; 警报（＆＃34;我是一个警报框！＆＃34;）;＆＃13; }＆＃13; }＆＃13; myFunction的（）＆＃13; ＆LT; /脚本＆GT;＆LT; /代码＆GT;＆LT; /预＆GT;＆＃13; ＆LT; / DIV＆GT;＆＃13; ＆LT; / DIV＆GT;＆＃13; ＆LT; / p为H.

如何从if语句中显示图像

1 个答案: