js中 settimeout() 與 setinternal()方法的區別

Evaluates an expression after a specified number of milliseconds has elapsed.

(在指定時間過後執行指定的表達式)

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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以上內容摘自某本JScript教程(CHM格式,出處不詳,跟原作者說聲Sorry)

以下內容沒抄任何人的,如果有雷同,估計不是你抄偶的就是巧合,嘿嘿.

-------------------------------------------------------------------
setTimeout( alert("3秒種過去了"), 3000);//調用一個函數,允許帶常量參數
-------------------------------------------------------------------
<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); //可以帶變量參數的setTimeout調用形式
          return z;
}

setTimeout( function(){ sum = Plus(x, y, z); }, 3000);/*除了可以帶變量參數還可以獲取返回值的setTimeout調用形式*/

</script>

 

setInterval()的用法和setTimeout()是一樣的:

iTimerID
 = window
.setInterval(
vCode
, 
iMilliSeconds
 [
, 
sLanguage
]
)

不同的是setTimeout()是一次性作用,而setInterval()是每隔iMilliSeconds 就執行一次vCode.( Evaluates an expression each time a specified number of milliseconds has elapsed)

http://hi.baidu.com/test/blog/item/69fa1a4cce6feff9d72afc07.html