例子：
<SCRIPT>
var g_oToHide = null;
function fnHide(oToHide){
g_oToHide = oToHide;
window.setTimeout(fnHide2, 3000);
}
function fnHide2(sID){
if (g_oToHide) {
g_oToHide.style.display="none";
}
}
</SCRIPT>
<INPUT TYPE=button VALUE="Now you see me ..." ID="oHideButton"
onclick="fnHide(this)">
解释：
Evaluates an expression after a specified number of milliseconds has elapsed.
Syntax
vCode
Required. Variant that specifies the function pointer or string that indicates the code to be executed when the specified interval has elapsed.
iMilliSeconds
Required. Integer that specifies the number of milliseconds.
sLanguage
Optional. String that specifies one of the following values:
JScript
Language is JScript.
VBScript
Language is VBScript.
JavaScript
Language is JavaScript.
Return Value
Integer. Returns an identifier that cancels the evaluation with the clearTimeout method.
Remarks
In versions earlier than Microsoft® Internet Explorer 5, the first argument of setTimeout must be a string. Evaluation of the string is deferred until the specified interval elapses.
As of Internet Explorer 5, the first argument of setTimeout can be a string or a function pointer.
The specified expression or function is evaluated once. For repeated evaluation, use the setInterval method.
When you use the setTimeout method with Introduction to DHTML Behaviors, the value of vCode should be a function pointer to call a function within the HTML Component (HTC) file or a string to call a function in the primary document.
Made in blog.csdn.net/leavecd
欢迎转载。
[Web开发]setTimeout 和 setInterval 的区别
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