<!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>无标题文档</title> </head> <body> <form id="form1" name="form1" method="post" action=""> <label> <input type="text" name="textfield" onkeyup="this.value = this.value.toUpperCase();"/> </label> </form> </body> </html>
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