密码确认代码如下：
<!doctype html> <html lang="en"> <head> <meta charset="UTF-8"> <title>密码确认</title> </head> <body > <form> 输入户名： <input type="text" name="name"/> <P>输入密码： <input type="password" name="pw" id="pw1"/></P> <p>确认密码： <input type="password" name="pw" id="pw2" onkeyup="validate()"/><span id="tishi"></span></p> <p><input type="submit" value="注册" id="submit"/> <input type="reset" value="重置"/></p> </form> <script> function validate() { var pw1 = document.getElementById("pw1").value; var pw2 = document.getElementById("pw2").value; if(pw1 == pw2) { document.getElementById("tishi").innerHTML="<font color='green'>两次密码相同</font>"; document.getElementById("submit").disabled = false; } else { document.getElementById("tishi").innerHTML="<font color='red'>两次密码不相同</font>"; document.getElementById("submit").disabled = true; } } </script> </body> </html>
效果截图如下：
