js javascript 更新图片 img 标签的地址

来源：https://stackoverflow.com/questions/1232793/javascript-set-img-src

var image = document.createElement("img");
var imageParent = document.getElementById("body");
image.id = "id";
image.className = "class";
image.src = searchPic.src;            // image.src = "IMAGE URL/PATH"
imageParent.appendChild(image);