function setPublicKey() {
$.getJSON('zzs.json', function(packJson){
var strjson = "";
for(var p in packJson){
strjson+= packJson[p].key+"<br>";
}
var mazey=document.getElementById("jg");
mazey.innerHTML="这里是返回内容:<br><br>"+strjson;
});
}
]]>