IE11也不再支持document.createElement("<input type='file' name='upload'/>");

以前IE浏览器会支持这样的js代码



document.createElement("<input type='file'  name='upload'/>");，但现在我们必须这样写：

var uploadHTML = document.createElement("input");
         uploadHTML.setAttribute("type", "file");
         uploadHTML.setAttribute("name", "upload");

又如，换行这样写： uploadHTML = document.createElement("br");
        document.getElementById("files").appendChild(uploadHTML);