Javascript 保存图像的src的函数不起作用

下面的代码显示图像，如果我单击其中一个，则使用蓝色边框将其选中。它还将所选对象的src存储在变量src1中，但最后一点不起作用。我的错在哪里？谢谢你们

var src1 = "";
var img = new Array();
img[0] = new Image();
img[0].src = "../images/poggiatesta2.jpg";
img[1] = new Image();
img[1].src = "../images/poggiatesta1.JPG";
img[2] = new Image();
img[2].src = "../images/poggiatesta3.jpg";
for (var i = 0; i < img.length; i++) {
    var imagetag = document.createElement("img");
    var onclick = document.createAttribute("onclick");
    onclick.value = "myfun(" + i + ")";

    var sorc = document.createAttribute("src");
    sorc.value = img[i].src;

    var id = document.createAttribute("id");
    id.value = "my_image" + i;

    var clas = document.createAttribute("class");
    clas.value = "my_image_clas";

    imagetag.setAttributeNode(clas);
    imagetag.setAttributeNode(onclick);
    imagetag.setAttributeNode(sorc);
    imagetag.setAttributeNode(id);
    document.body.appendChild(imagetag);
}
function myfun(i) {
    src1 = document.getElementById('my_image' + i).src;

}
var _last = null;
function select(element) {
    element.onclick = function () {
        element.classList.toggle('selected');
        if (_last) _last.classList.remove("selected");
        _last = element.classList.contains("selected") ? element : null;
    }
}

Array.from(document.getElementsByClassName('my_image_clas')).forEach(select);

---

您使用了错误的方式添加元素的事件。您的事件未被触发

请改用这种方式：

var imagetag = document.createElement("img");
imagetag.onclick = function () {
    myfun(i);
};

---

您使用了错误的方式添加元素的事件。您的事件未被触发

请改用这种方式：

var imagetag = document.createElement("img");
imagetag.onclick = function () {
    myfun(i);
};

试试这个：

    var src1 = "";
    var img = new Array();
    img[0] = new Image();
    img[0].src = "../images/poggiatesta2.jpg";
    img[1] = new Image();
    img[1].src =  "../images/poggiatesta1.JPG";
    img[2] = new Image();
    img[2].src =  "../images/poggiatesta3.jpg";


 for (var i = 0; i < img.length; i++) {
    var imagetag = document.createElement("img");


    var sorc = document.createAttribute("src");
    sorc.value = img[i].src;

    var id = document.createAttribute("id");
    id.value = "my_image" + i;

    var clas = document.createAttribute("class");
    clas.value = "my_image_clas";

    imagetag.setAttributeNode(clas);
    imagetag.setAttributeNode(sorc);
    imagetag.setAttributeNode(id);
    document.body.appendChild(imagetag);

}

var _last = null;
function select(element) {
    element.onclick = function () {
        element.classList.toggle('selected');
        if (_last) _last.classList.remove("selected");
        _last = element.classList.contains("selected") ? element : null;
        src1 = _last.src;
    }
}

Array.from(document.getElementsByClassName('my_image_clas')).forEach(select);

试试这个：

    var src1 = "";
    var img = new Array();
    img[0] = new Image();
    img[0].src = "../images/poggiatesta2.jpg";
    img[1] = new Image();
    img[1].src =  "../images/poggiatesta1.JPG";
    img[2] = new Image();
    img[2].src =  "../images/poggiatesta3.jpg";


 for (var i = 0; i < img.length; i++) {
    var imagetag = document.createElement("img");


    var sorc = document.createAttribute("src");
    sorc.value = img[i].src;

    var id = document.createAttribute("id");
    id.value = "my_image" + i;

    var clas = document.createAttribute("class");
    clas.value = "my_image_clas";

    imagetag.setAttributeNode(clas);
    imagetag.setAttributeNode(sorc);
    imagetag.setAttributeNode(id);
    document.body.appendChild(imagetag);

}

var _last = null;
function select(element) {
    element.onclick = function () {
        element.classList.toggle('selected');
        if (_last) _last.classList.remove("selected");
        _last = element.classList.contains("selected") ? element : null;
        src1 = _last.src;
    }
}

Array.from(document.getElementsByClassName('my_image_clas')).forEach(select);

---

我应该把这个代码放在for循环的上面吗？因为它不起作用：你能描述一下你的错误吗？你参加了myfun的活动了吗？如果是，i的值是多少？我应该将此代码放在for循环的正上方吗？因为它不起作用：你能描述一下你的错误吗？你参加了myfun的活动了吗？如果是，i的值是多少？