<!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=gb2312" /><title>Untitled Document</title><script type="text/javascript">function showcontent(){ document.getElementById("second").value=document.getElementById("first").value; }</script></head> <body><input type="text" name="first" id="first" onkeydown="showcontent()" /><input type="text" name="second" id="second" /></body></html> 但好似会少显示一个字符。必须使用onkeyUP事件
时间: 2024-12-29 06:48:56