​x
 
<!DOCTYPE html>
<html>
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<body>
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<h1>请求调用函数</h1>
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<p>PHP 文件返回对您作为回调发送的函数的调用。</p>
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<button onclick="clickButton()">单击我！</button>
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<p id="demo"></p>
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<script>
function clickButton() {
  var s = document.createElement("script");
  s.src = "demo_jsonp2.php?callback=myDisplayFunction";
  document.body.appendChild(s);
}
​
function myDisplayFunction(myObj) {
  document.getElementById("demo").innerHTML = myObj.name;
}
</script>
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</body>
</html>
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