javascript用户名密码代码，js写用户名密码错误提示

网页上做一个表单“用户名、密码、"点击"提交"的javascript代码是什么

Validator = {

Require : /.+/,

Email : /^\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*$/,

Phone : /^((\(\d{2,3}\))|(\d{3}\-))?(\(0\d{2,3}\)|0\d{2,3}-)?[1-9]\d{6,7}(\-\d{1,4})?$/,

Mobile : /^((\(\d{2,3}\))|(\d{3}\-))?13\d{9}$/,

Url : /^http:\/\/[A-Za-z0-9]+\.[A-Za-z0-9]+[\/=\?%\-_~`@[\]\':+!]*([^\"\"])*$/,

IdCard : "this.IsIdCard(value)",

Currency : /^\d+(\.\d+)?$/,

Number : /^\d+$/,

Zip : /^[1-9]\d{5}$/,

QQ : /^[1-9]\d{4,8}$/,

Integer : /^[-\+]?\d+$/,

Double : /^[-\+]?\d+(\.\d+)?$/,

English : /^[A-Za-z]+$/,

Chinese : /^[\u0391-\uFFE5]+$/,

Username : /^[a-z]\w{3,}$/i,

UnSafe : /^(([A-Z]*|[a-z]*|\d*|[-_\~!@#\$%\^\*\.\(\)\[\]\{\}\?\\\/\'\"]*)|.{0,5})$|\s/,

IsSafe : function(str){return !this.UnSafe.test(str);},

SafeString : "this.IsSafe(value)",

Filter : "this.DoFilter(value, getAttribute('accept'))",

Limit : "this.limit(value.length,getAttribute('min'), getAttribute('max'))",

LimitB : "this.limit(this.LenB(value), getAttribute('min'), getAttribute('max'))",

Date : "this.IsDate(value, getAttribute('min'), getAttribute('format'))",

Repeat : "value == document.getElementsByName(getAttribute('to'))[0].value",

Range : "getAttribute('min') (value|0) (value|0) getAttribute('max')",

Compare : "this.compare(value,getAttribute('operator'),getAttribute('to'))",

Custom : "this.Exec(value, getAttribute('regexp'))",

Group : "this.MustChecked(getAttribute('name'), getAttribute('min'), getAttribute('max'))",

ErrorItem : [document.forms[0]],

ErrorMessage : ["以下原因导致提交失败：\t\t\t\t"],

Validate : function(theForm, mode){

var obj = theForm || event.srcElement;

var count = obj.elements.length;

this.ErrorMessage.length = 1;

this.ErrorItem.length = 1;

this.ErrorItem[0] = obj;

for(var i=0;icount;i++){

with(obj.elements[i]){

var _dataType = getAttribute("dataType");

if(typeof(_dataType) == "object" || typeof(this[_dataType]) == "undefined") continue;

this.ClearState(obj.elements[i]);

if(getAttribute("require") == "false" value == "") continue;

switch(_dataType){

case "IdCard" :

case "Date" :

case "Repeat" :

case "Range" :

case "Compare" :

case "Custom" :

case "Group" :

case "Limit" :

case "LimitB" :

case "SafeString" :

case "Filter" :

if(!eval(this[_dataType])) {

this.AddError(i, getAttribute("msg"));

}

break;

default :

if(!this[_dataType].test(value)){

this.AddError(i, getAttribute("msg"));

}

break;

}

}

}

if(this.ErrorMessage.length 1){

mode = mode || 1;

var errCount = this.ErrorItem.length;

switch(mode){

case 2 :

for(var i=1;ierrCount;i++)

this.ErrorItem[i].style.color = "red";

case 1 :

alert(this.ErrorMessage.join("\n"));

this.ErrorItem[1].focus();

break;

case 3 :

for(var i=1;ierrCount;i++){

try{

var span = document.createElement("SPAN");

span.id = "__ErrorMessagePanel";

span.style.color = "red";

this.ErrorItem[i].parentNode.appendChild(span);

span.innerHTML = this.ErrorMessage[i].replace(/\d+:/,"*");

}

catch(e){alert(e.description);}

}

this.ErrorItem[1].focus();

break;

default :

alert(this.ErrorMessage.join("\n"));

break;

}

return false;

}

return true;

},

limit : function(len,min, max){

min = min || 0;

max = max || Number.MAX_VALUE;

return min = len len = max;

},

LenB : function(str){

return str.replace(/[^\x00-\xff]/g,"**").length;

},

ClearState : function(elem){

with(elem){

if(style.color == "red")

style.color = "";

var lastNode = parentNode.childNodes[parentNode.childNodes.length-1];

if(lastNode.id == "__ErrorMessagePanel")

parentNode.removeChild(lastNode);

}

},

AddError : function(index, str){

this.ErrorItem[this.ErrorItem.length] = this.ErrorItem[0].elements[index];

this.ErrorMessage[this.ErrorMessage.length] = this.ErrorMessage.length + ":" + str;

},

Exec : function(op, reg){

return new RegExp(reg,"g").test(op);

},

compare : function(op1,operator,op2){

switch (operator) {

case "NotEqual":

return (op1 != op2);

case "GreaterThan":

return (op1 op2);

case "GreaterThanEqual":

return (op1 = op2);

case "LessThan":

return (op1 op2);

case "LessThanEqual":

return (op1 = op2);

default:

return (op1 == op2);

}

},

MustChecked : function(name, min, max){

var groups = document.getElementsByName(name);

var hasChecked = 0;

min = min || 1;

max = max || groups.length;

for(var i=groups.length-1;i=0;i--)

if(groups[i].checked) hasChecked++;

return min = hasChecked hasChecked = max;

},

DoFilter : function(input, filter){

return new RegExp("^.+\.(?=EXT)(EXT)$".replace(/EXT/g, filter.split(/\s*,\s*/).join("|")), "gi").test(input);

},

IsIdCard : function(number){

var date, Ai;

var verify = "10x98765432";

var Wi = [7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2];

var area = ['','','','','','','','','','','','北京','天津','河北','山西','内蒙古','','','','','','辽宁','吉林','黑龙江','','','','','','','','上海','江苏','浙江','安微','福建','江西','山东','','','','河南','湖北','湖南','广东','广西','海南','','','','重庆','四川','贵州','云南','西藏','','','','','','','陕西','甘肃','青海','宁夏','新疆','','','','','','台湾','','','','','','','','','','香港','澳门','','','','','','','','','国外'];

var re = number.match(/^(\d{2})\d{4}(((\d{2})(\d{2})(\d{2})(\d{3}))|((\d{4})(\d{2})(\d{2})(\d{3}[x\d])))$/i);

if(re == null) return false;

if(re[1] = area.length || area[re[1]] == "") return false;

if(re[2].length == 12){

Ai = number.substr(0, 17);

date = [re[9], re[10], re[11]].join("-");

}

else{

Ai = number.substr(0, 6) + "19" + number.substr(6);

date = ["19" + re[4], re[5], re[6]].join("-");

}

if(!this.IsDate(date, "ymd")) return false;

var sum = 0;

for(var i = 0;i=16;i++){

sum += Ai.charAt(i) * Wi[i];

}

Ai += verify.charAt(sum%11);

return (number.length ==15 || number.length == 18 number == Ai);

},

IsDate : function(op, formatString){

formatString = formatString || "ymd";

var m, year, month, day;

switch(formatString){

case "ymd" :

m = op.match(new RegExp("^((\\d{4})|(\\d{2}))([-./])(\\d{1,2})\\4(\\d{1,2})$"));

if(m == null ) return false;

day = m[6];

month = m[5]*1;

year = (m[2].length == 4) ? m[2] : GetFullYear(parseInt(m[3], 10));

break;

case "dmy" :

m = op.match(new RegExp("^(\\d{1,2})([-./])(\\d{1,2})\\2((\\d{4})|(\\d{2}))$"));

if(m == null ) return false;

day = m[1];

month = m[3]*1;

year = (m[5].length == 4) ? m[5] : GetFullYear(parseInt(m[6], 10));

break;

default :

break;

}

if(!parseInt(month)) return false;

month = month==0 ?12:month;

var date = new Date(year, month-1, day);

return (typeof(date) == "object" year == date.getFullYear() month == (date.getMonth()+1) day == date.getDate());

function GetFullYear(y){return ((y30 ? "20" : "19") + y)|0;}

}

}

最常见的 JS验证

相关问答

Q1: javascript验证用户名和密码？

用正则表达式吧

SCRIPT type="text/javascript"

function checkUserName(userName){

var reg = /^[a-z\d]{6,12}/; // 小写字母

return reg.test(userName);

}

function checkPassword(userPassword){

var reg = /^\d{6}$/; // 数字

return reg.test(userPassword);

}

//alert(checkUserName('adf'));

//alert(checkPassword('1212122'))

/SCRIPT

Q2: 用javascript编写一段用户名和密码登录代码。点击登录按钮后，页面跳转到另一个页面，显示此用户名和密码的

function login()

{

var username=document.getElementById("userName");

var password=document.getElementById("password");

if(username.value=="admin"password.value="123456")

{

window.location.href="success.html";

}

}

为登录按钮注册onclick=“login()”

Q3: 用JS编写输入用户名和密码

var name=document.getElementById("username");

var pwd=document.getElementById("usepwd");

/*按钮点击事件*/

if(name.value!=admin ped.value!=123456){

alert("用户名或者密码错误");

}else{

alert("用户登陆成功");

}

---------------纯手打，望采纳

javascript用户名密码代码的介绍就聊到这里吧，感谢你花时间阅读本站内容，更多关于js写用户名密码错误提示、javascript用户名密码代码的信息别忘了在本站进行查找喔。