<!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>无标题文档</title></head><style type="text/css">
.input_text{width:250px;}.input_file{width:300px; margin-left:-300px; filter:alpha(opacity=0); opacity:0;}</style>html部分：
<body>
<form method="post"><input class="input_text" type="text" id="txt" name="txt" /><input type="button" value="浏览" /><input class="input_file" size="30" type="file" οnchange="txt.value=this.value" /></form></body>