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1¡¢eval()º¯Êý
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<script>
function show(obj)
{
var str=eval("document.Form."+obj+".value");
alert(“ÄãÊäÈëµÄÐÕÃûÊÇ:”+str);
}
</script>
<form name="Form" id="Form">
ÐÕÃû£º
<input name="name" type="text" value="ΤС±¦">
<input name="button" type="button" value="Ìá½»" onClick=show("name")>
</form>
2¡¢isNaN()º¯Êý
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<script>
var x=15;
var y="»ÆÑÅÁá";
document.write("<LI>x²»ÊÇÊýÖµÂð£¿",isNaN(x));
document.write("<LI>y²»ÊÇÊýÖµÂð£¿",isNaN(y));
</script>
3¡¢parseInt()º¯Êý
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¸ñʽ£ºparseInt(ÊýÖµ×Ö´®[£¬µ×Êý])
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<script>
document.write("1101<sub>2</sub>=",parseInt("1101",2),"<sub>10</sub><br>");
document.write("BFFF<sub>16</sub>=",parseInt("BFFF",16),"<sub>10</sub><br>");
</script>
4¡¢parseFloat()º¯Êý
parseFloat()ÊǸ¡µãÊý
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thisObj
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function getPageSize(){
var xScroll, yScroll;
if (window.innerHeight && window.scrollMaxY) {
xScroll = document.body.scrollWidth;
yScroll = window.inn ......
function QueryString(fieldName){
var urlString = location.search;
if (urlString != null) {
var typeQu = fieldName + "=";
var urlEnd = urlString.indexOf(typeQu);
if (urlEnd != -1) {
var paramsUrl = urlString.substring(urlEnd + typeQu.length);
var isEnd = paramsUrl.indexOf('&' ......
var currItem = listbox.options[currIndex];
var prevItem = listbox.options[currIndex - 1];
&n ......
http://bei123wang.blog.163.com/blog/static/23175492009113022048840/
JavaScript ¶ÔÏó×ÖÃæÁ¿
javascript 2009-12-30 14:20:48 ÔĶÁ7 ÆÀÂÛ0 ×ֺţº´óÖÐС
JavaScript ¶ÔÏó×ÖÃæÁ¿
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