var path = 'res/playDesps/' + 'beihai' + '.txt';
cc.loader.loadTxt(path, function (err, str) {
    //
    var label = new cc.LabelTTF(str, "Arial", 30);
    label.setColor(cc.color(20, 114, 78, 255));
    label.setAnchorPoint(0, 0);

    // 設定換行
    label.setDimensions(this.getContentSize().width, 0);

    // 新增到Layout上
    var item = new ccui.Layout();
    item.setTouchEnabled(true);
    item.width = label.getContentSize().width;
    item.height = label.getContentSize().height;
    item.addChild(label);


    this.pushBackCustomItem(item);
}.bind(this));