jsonp

        var newScript = document.createElement('script');        
        newScript.setAttribute("src", "http://192.168.255.14:8546/countrys_p.txt");
        newScript.setAttribute("type", "text/javascript");

        function callback(data) {
            grid.setData(data.data);
            
        };

countrys_p.txt的内容

callback({total:11,
 data:[
			{url:"BE.ico",name:"比利时"},
			{url:"CZ.ico",name:"捷克"},
			{url:"DE.ico",name:"德国"},
			{url:"DK.ico",name:"丹麦"},
			{url:"ES.ico",name:"西班牙"},
			{url:"GB.ico",name:"英国"},
			{url:"GR.ico",name:"希腊"},
			{url:"HR.ico",name:"克罗地亚"},
			{url:"IS.ico",name:"冰岛"},
			{url:"IT.ico",name:"意大利"},
			{url:"RU.ico",name:"俄罗斯"}
]})