Javascript: setTimeout()使用及 setInterval()使用

Evaluates an expression after a specified number of milliseconds has elapsed.
(在指定时间过后执行指定的表达式)
Syntax:
iTimerID = window.setTimeout(vCode, iMilliSeconds [, sLanguage])
Parameters
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.
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以上内容摘自某本JScript教程(CHM格式,出处不详,跟原作者说声Sorry)
以下内容没抄任何人的,如果有雷同,估计不是你抄偶的就是巧合,嘿嘿.
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setTimeout( alert("3秒种过去了"), 3000);//调用一个函数,允许带常量参数
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<script language="Javascript">
//by zuoyang
var x = 1;
var y = 2;
var z = 3;
var sum;
function Plus(a, b)
{
          var z = 0;
          var i = 0;
          for (i = 0; i < arguments.length; i++)
          {
                   z += arguments[i];
          }
          setTimeout( function() {alert(z);}, 6000); //可以带变量参数的setTimeout调用形式
          return z;
}
setTimeout( function(){ sum = Plus(x, y, z); }, 3000);/*除了可以带变量参数还可以获取返