<!DOCTYPE HTML><html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"><title>数组</title><script type="text/javascript">var arr=['A','B','C','D','E','F'];//arr.splice(2,2);//document.write(arr);为什么给这句话用变量存起来，值就变了，这句话输出ABEFvar arr2=arr.splice(2,2);document.write(arr2);//输出CD//ps新手，求解答，先谢过</script></head><body></body></html>
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