Examples are as follows:
function hiddenPass(event) { var password0 = document.getElementById("password0"); var password1 = document.getElementById("password1"); if (event.keyCode == 13) { } var keycode; if (window.event) { // IE keycode = event.keyCode } else if (event.which) { // Netscape/Firefox/Opera keycode = event.which } var keychar = String.fromCharCode(keycode); password1.value = password1.value + keychar; password1.value = password1.value.substring(0, password0.length);}function clearPass(){ $("#password0").val(""); $("#password1").val("");}<li><label>Password: </label> <input type="text" id="password0" onfocus="javascript:clearPass();" onkeyup="this.value=this.value.replace(/./g,'*')" onkeypress="javascript:hiddenPass(event);"/> <input type="hidden" id="password1" name="password1"/></li>The above implementation code that imitates password input box is all the content I have shared with you. I hope you can give you a reference and I hope you can support Wulin.com more.