如何通过javascript中的命令制作图片？

Question

这似乎不起作用

<script>
function imageCommand() {
    var imgdraw = prompt("type in an image adress")
    var img = document.createElement("img");
    img.src = imgdraw;
}
</script>

<a href="javascript:imageCommand()">click here to draw something on the screen</a>

Answer 1

您需要将创建的图像对象附加到某处。 例如body ：

function imageCommand() {
    var imgdraw = prompt("type in an image adress")
    var img = document.createElement("img");
    img.src = imgdraw;
    document.body.appendChild(img);
}