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cursor:Ñùʽ ¸ü¸ÄÊó±êÑùʽ hand crosshair text wait help default auto
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document.alinkcolor document.alinkcolor="ÑÕɫֵ"; ¸Ä±äÕýµã»÷Áª½ÓµÄÑÕÉ«
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document.forms.length ·µ»Øµ±Ç°Ò³form±íµ¥Êý
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Definition and Usage
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The eval() function evaluates a
string as PHP code.
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The string
must be valid PHP code and must end with semicolon.
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1.¸¡µãÔËËã
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<script>
alert(0.02 / 0.1); //0.19999999999999998
alert(1.14 * 100); //113.99999999999999 ;)
......
Cloning Nodes ½Úµã¿Ë¡
Another way of updating page contents using DOM methods is to clone existing DOM elements instead of creating new ones—in other words, using element.cloneNode() (where element is an existing node) instead of document.createElement().
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