js中setTimeout()的用法详解

<html> <head>
<script>
x = 0
y = 0
function count1( )
{ x = x + 1
  document.display1.box1.value = x
  meter1=setTimeout("count1( )", 1000)
}
function count2( )
{ y = y + 1
  document.display2.box2.value = y
  meter2=setTimeout("count2( )", 1000)
}
</script> </head>

<body bgcolor=lightcyan text=red> <p> </br>
<form name=display1>
<input type="text" name="box1" value="0" size=4 >
<input type=button value="停止計時" onClick="clearTimeout(meter1) " >
<input type=button value="繼續計時" onClick="count1( ) " >
</form>
<p>
<form name=display2>
<input type="text" name="box2" value="0" size=4 >
<input type=button value="停止計時" onClick="clearTimeout(meter2) " >
<input type=button value="繼續計時" onClick="count2( ) " >
</form>
<script>
count1( )
count2( )
</script>
</body> </html>

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