<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <title>只能输入中文</title> </head> <body> <input type="text" id="text" onkeyup="value=value.replace(/[^\u4E00-\u9FA5]/g,'')" onbeforepaste="clipboardData.setData('text',clipboardData.getData('text').replace(/[^\u4E00-\u9FA5]/g,''))"> </body> </html>
