Js 中常用方法

一、获取唯一值(2014-12-23)

1 function newGuid() {
2     var guid = "";
3     var n = (((1 + Math.random()) * 0x10000) | 0).toString(16).substring(1);
4     for (var i = 1; i <= 8; i++) {
5         guid += n;
6     }
7     return guid;
8 }

二、ajaxfileupload.js(下载js插件)使用

$("#bttUp").click(function () {
    var value_temp = $("#fileUp").val();
    if (value_temp != "" && value_temp != null && value_temp != undefined && value_temp.length > 0) {
        var id = newGuid();
        var url_ = "";
        $.ajaxFileUpload({
            url: "../../Handler/ManagerHandler.ashx",
            type: "POST",
            fileElementId: "fileUp",
            dataType: "text/plain",
            data: { oprate: "upimg", type: $("#ddlImgType option:selected").val() },
            beforeSend: function () {
                alert("beforeSend");
            },
            complete: function () {
                copyToClipboard(id, url_);
            },
            success: function (data, status) {
                url_ = $(data).text();
                var img = "<img src = \"" + url_ + "\"/>";
                $("#tbUrlList").prepend("<tr><td >" + img + "</td><td><input type=‘text‘ readonly=‘readonly‘ value=‘" + url_ + "‘/></td><td><input value=‘复制地址‘ type=‘button‘ id=‘" + id + "‘ class=‘copyurl‘ name=‘" + url_ + "‘/></td></tr>");
            },
            error: function (data, status, e) {
                alert("error");
            }
        })
    }
});

三、ZeroClipboard.js(flash下载粘贴)使用

 1 //id : button控件id ,txt：要复制的内容
 2 function copyToClipboard(id, txt) {
 3     var clip = new ZeroClipboard.Client();
 4     clip.setHandCursor(true);
 5     clip.setText(txt);
 6     clip.glue(id);
 7     clip.addEventListener("complete", function () {
 8         alert("复制成功！");
 9     });
10 }

注意：传入的id必须唯一，如重复，则覆盖。