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Round(expression[,numdecimalplaces])
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expression ±ØÐèµÄ¡£ÐèÒª±»ËÄÉáÎåÈëµÄ±í´ïʽ¡£
numdecimalplaces ¿ÉÑ¡µÄ¡£¹æ¶¨¶ÔСÊýµãÓұߵĶàÉÙλ½øÐÐËÄÉáÎåÈ롣ĬÈÏÊÇ 0¡£

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dim x
x=24.13278
document.write(Round(x))

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24

Àý×Ó 2

dim x
x=24.13278
document.write(Round(x,2))

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24.13
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