<script>
var a=['1','2','3','4','5','6','7','8','9','10','11','12','13','14','15','16','17','18','19']
a[0]='9'
alert(a[0]);
</script>
var a=['1','2','3','4','5','6','7','8','9','10','11','12','13','14','15','16','17','18','19']
a[0]='9'
alert(a[0]);
</script>
解决方案 »
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