在正文头部添加以下代码
<script language = JavaScript> function password() {
var testV = 1;
var pass1 = prompt('提示文本','');
var passwordforthisarticle = "密码";
var inputtimemax = 19960319;
while (testV < inputtimemax) {
if (!pass1)
history.go(-1);
if (pass1 == passwordforthisarticle) {
break;
}
testV+=1;
var pass1 =
prompt('Password error!');
}
if (pass1!= passwordforthisarticle & testV == inputtimemax)
history.go(-1);
return " ";
}
document.write(password());
</script>