<!doctype?html>
<html>
<head>
<meta?charset="utf-8">
<title>無標(biāo)題文檔</title>
<script>
function?fn1(data){
var?oUl1?=?document.getElementById('ul1');
var?html?=?'';
for(var?i=0;i<data.length;i++){
html?+='<li>'+data[i]+'</li>';
};
oUl1.innerHTML?=?html;
}
function?fn2(data){
var?oUl2?=?document.getElementById('ul2');
var?html?=?'';
for(var?i=0;i<data.length;i++){
html?+='<li>'+data[i]+'</li>';
};
?oUl2.innerHTML?=?html;
}
function?fn3(data){
var?oUl3?=?document.getElementById('ul3');
var?html?=?'';
for(var?i=0;i<data.length;i++){
html?+='<li>'+data[i]+'</li>';
};
?oUl3.innerHTML?=?html;
}
</script>
<!--<script?src="2.txt"></script>-->
<script>
window.onload?=?function(){
var?oBtn1?=?document.getElementById('btn1');
var?oBtn2?=?document.getElementById('btn2');
var?oBtn3?=?document.getElementById('btn3');
oBtn1.onclick?=?function(){
//當(dāng)按鈕點擊的時候再去加載遠(yuǎn)程資源，讓他執(zhí)行。
var?oScript?=?document.createElement('script');
oScript.src?=?'getData.php?callback=fn1';
document.body.appendChild(oScript);
};
oBtn2.onclick?=?function(){
//當(dāng)按鈕點擊的時候再去加載遠(yuǎn)程資源，讓他執(zhí)行。
var?oScript?=?document.createElement('script');
oScript.src?=?'getData.php?t=str&callback=fn2';
document.body.appendChild(oScript);
};
oBtn3.onclick?=?function(){
//當(dāng)按鈕點擊的時候再去加載遠(yuǎn)程資源，讓他執(zhí)行。
var?oScript?=?document.createElement('script');
oScript.src?=?'getData.php?callback=fn3';
document.body.appendChild(oScript);
};
};
</script>
</head>
<body>
<input?type="button"?id="btn1"?value="加載數(shù)字"?/>
????<ul?id="ul1"></ul>
????<input?type="button"?id="btn2"?value="加載字母"?/>
????<ul?id="ul2"></ul>
????<input?type="button"?id="btn3"?value="加載字母"?/>
????<ul?id="ul3"></ul>
</body>
</html><?php
$t?=?isset($_GET['t'])???$_GET['t']?:?'num';
$callback?=?isset($_GET['callback'])???$_GET['callback']?:?'fn1';
$arr1?=?array('111111','22222222','33333333','4444444','555555555555555555555');
$arr2?=?array('aaaaaaaaaaaa','bbbbbbbb','cccccccccccc','ddddddddd','eeeeeeeeeeee');
if?($t?==?'num')?{
$data?=?json_encode($arr1);
}?else?{
$data?=?json_encode($arr2);
}
echo?$callback.'('.$data.');';當(dāng)點擊的時候執(zhí)行對應(yīng)的回調(diào)fn，后臺是怎樣找到是對應(yīng)的數(shù)組的？還有$t?=?isset($_GET['t'])???$_GET['t']?:?'num';這個$_GET['t']是指哪一個？
前后端交互問題
慕勒5811226
2016-07-09 22:22:33
