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1ãéè¿æ°ç»çpushæ¹å¼æ·»å å
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2ãéè¿æ°ç»çä¸æ æ¹å¼æ·»å å
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示ä¾
<script>
var arr=[];
arr.push('a');//第ä¸ç§æ¹å¼ï¼å¾æ°ç»æ«å°¾æ·»å ä¸ä¸ªå符a
arr[arr.length]='a';//第äºç§æ¹å¼ï¼å¾æ°ç»æ«å°¾æ·»å ä¸ä¸ªå符a
</script>
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