SETTimeout函数立即调用,而不是在延迟后调用。
window.onload = function GetUsersNumber() {
aside = document.getElementById("users");
if (XMLHttpRequest) var x = new XMLHttpRequest();
else var x = new ActiveXObject("Microsoft.XMLHTTP");
x.open("GET", "users_count.php", true);
x.send();
x.onreadystatechange = function () {
if (x.readyState == 4) {
if (x.status == 200) aside.innerHTML = x.responseText;
setTimeout(GetUsersNumber(), 50000);
}
}}米脂
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