<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>無標(biāo)題文檔</title><script type="text/javascript">function change(){var test1 = document.getElementById("test1").value;document.getElementById("test2").value = test1;}function change2(){document.getElementById("test1").value = "9";}</script></head><body><input onchange="change()" type="text" id="test1" /><input type="text" id="test2" /><input type="button" onclick="change2()" id="test3" value="改變" /></body></html>
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要求按了按鈕后,test2的值也要改變
onchange出不了效果,求高手
米琪卡哇伊
2018-12-07 12:16:10
