主题：如何禁止上传".wmf",".js",".css" ,".html",".htm",".zip",".rar" 文件

方法一：在你httprequest事件处理，判断上传的文件名，根据后缀名判断，最后你保存的时候，不是自由控制么？

方法二：在js里面直接判断，foxtable的weui.me.js已经做了判断的啊 previewFile 函数

var frm = document.getElementById("form1");
var frmdata = new FormData(frm);
if (frm.incremental) {
    var fluds = frm.getElementsByClassName("weui_uploader_input");
    for (var idx = 0; idx < fluds.length; idx++) {
        var files = fluds[idx].Files;
        if (files) {
            for (var i = 0; i < files.length; i++) {
                alert(files[i].blobFile);
                var fln = files[i].blobFile
                if (typeof(fln) == "undefined") {
                    alert("文件格式不正确");
                    return false;
                }
                fln = fln.substring(fln.lastIndexOf(".") + 1).toLowerCase();
                switch (fln) {
                case "jpg":
                case "jpeg":
                case "png":
                case "gif":
                case "bmp":
                case "wmf":
                    break;
                }
            }
        }
    }
}

var frm = document.getElementById("form1");
var frmdata = new FormData(frm);
if (frm.incremental) {
    var fluds = frm.getElementsByClassName("weui_uploader_input");
    for (var idx = 0; idx < fluds.length; idx++) {
        var files = fluds[idx].Files;
        if (files) {
            for (var i = 0; i < files.length; i++) {
                alert(files[i].blobFile);
                var fln = files[i].blobFile
                if (typeof(fln) == "undefined") {
                    alert("文件格式不正确");
                    return false;
                }
                fln = fln.substring(fln.lastIndexOf(".") + 1).toLowerCase();
                switch (fln) {
                case "jpg":
                case "jpeg":
                case "png":
                case "gif":
                case "bmp":

                    break;

                default:

                    alert("格式错误");

                    return false;
                }
            }
        }
    }
}