<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/ TR/html4/strict.dtd">
<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"><title>事件</title></head><body>输入文本框:<input type="text" id="source"><br /><button onclick="document.getElementById('target').value=document. getElementById('source').value;" />单击将复制文本到目标框</button><br />目标文本框:<input type="text" id="target" /><br></body>
</html>
运行结果
