js实现：输入密码才能打开网页.js实现密码保护的网页.

用js实现：输入密码才能打开网页，即js实现密码保护的网页。 方法非常简单，直接上代码：

function password() {
    
var testV = 1;
    
var pass1 = prompt('Please input the password!','');

while (testV  3) {
    
if (!pass1)
history.go(-1);

if (pass1 == "baizhuadmin") {
    
break;

}
    
testV+=1;
    
var pass1 =
prompt('Password error!');

}
    
if (pass1!="password" &
     testV ==3)
history.go(-1);
    
return " ";

}
    
document.write(password());
    

可能有人会疑虑，密码就在代码中，如果别人查看一下源码就知道密码了， 嗯哪，确实存在这个问题，虽然上面代码中做了些防护，如果密码输不对的话，就返回上一页，但只要在浏览器中关掉js功能就可以打开网页查看js源码， 那么如何解决呢？当然有办法，使用js密码加密混淆啊，出大招：Jshaman（http://www.jshaman.com/），可以在线加密js代码， 就把上面的代码，用jshaman加密一下，加密后代码如下：

var _0x36e0=['UGxlYXNlIGlucHV0IHRoZSBwYXNzd29yZCE\x3d','YmFpemh1YWRtaW4\x3d','UGFzc3dvcmQgZXJyb3Ih','cGFzc3dvcmQ\x3d','d3JpdGU\x3d'];
(function(_0x14ba0c,_0x4281cd){
var _0x76aed0=function(_0x357e52){
while(--_0x357e52){
    _0x14ba0c['\x70\x75\x73\x68'](_0x14ba0c['\x73\x68\x69\x66\x74']());
}
}
    ;
    _0x76aed0(++_0x4281cd);
}
    (_0x36e0,0x18b));
var _0x036e=function(_0x5bd244,_0x19acdd){
    _0x5bd244=_0x5bd244-0x0;
    var _0x18950a=_0x36e0[_0x5bd244];
if(_0x036e['\x69\x6e\x69\x74\x69\x61\x6c\x69\x7a\x65\x64']===undefined){
(function(){
    var _0x35e27a=Function('\x72\x65\x74\x75\x72\x6e\x20\x28\x66\x75\x6e\x63\x74\x69\x6f\x6e\x20\x28\x29\x20'+'\x7b\x7d\x2e\x63\x6f\x6e\x73\x74\x72\x75\x63\x74\x6f\x72\x28\x22\x72\x65\x74\x75\x72\x6e\x20\x74\x68\x69\x73\x22\x29\x28\x29'+'\x29\x3b');
    var _0x25a917=_0x35e27a();
    var _0xbb5637='\x41\x42\x43\x44\x45\x46\x47\x48\x49\x4a\x4b\x4c\x4d\x4e\x4f\x50\x51\x52\x53\x54\x55\x56\x57\x58\x59\x5a\x61\x62\x63\x64\x65\x66\x67\x68\x69\x6a\x6b\x6c\x6d\x6e\x6f\x70\x71\x72\x73\x74\x75\x76\x77\x78\x79\x7a\x30\x31\x32\x33\x34\x35\x36\x37\x38\x39\x2b\x2f\x3d';
_0x25a917['\x61\x74\x6f\x62']||(_0x25a917['\x61\x74\x6f\x62']=function(_0x3f22c7){
    var _0x2c1aa8=String(_0x3f22c7)['\x72\x65\x70\x6c\x61\x63\x65'](/=+$/,'');
    for(var _0x4ab004=0x0,_0x31c921,_0x565a4b,_0x4b19d0=0x0,_0x38d053='';
    _0x565a4b=_0x2c1aa8['\x63\x68\x61\x72\x41\x74'](_0x4b19d0++);
    ~_0x565a4b&
    &
    (_0x31c921=_0x4ab004%0x4?_0x31c921*0x40+_0x565a4b:_0x565a4b,_0x4ab004++%0x4)?_0x38d053+=String['\x66\x72\x6f\x6d\x43\x68\x61\x72\x43\x6f\x64\x65'](0xff&
    _0x31c921>
    >
    (-0x2*_0x4ab004&
0x6)):0x0){
    _0x565a4b=_0xbb5637['\x69\x6e\x64\x65\x78\x4f\x66'](_0x565a4b);
}
    return _0x38d053;
}
    );
}
    ());
_0x036e['\x62\x61\x73\x65\x36\x34\x44\x65\x63\x6f\x64\x65\x55\x6e\x69\x63\x6f\x64\x65']=function(_0x1e7670){
    var _0x15209a=atob(_0x1e7670);
    var _0xfc80a=[];
    for(var _0xec3236=0x0,_0x5a7d9a=_0x15209a['\x6c\x65\x6e\x67\x74\x68'];
    _0xec3236_0x5a7d9a;
_0xec3236++){
    _0xfc80a+='\x25'+('\x30\x30'+_0x15209a['\x63\x68\x61\x72\x43\x6f\x64\x65\x41\x74'](_0xec3236)['\x74\x6f\x53\x74\x72\x69\x6e\x67'](0x10))['\x73\x6c\x69\x63\x65'](-0x2);
}
    return decodeURIComponent(_0xfc80a);
}
    ;
_0x036e['\x64\x61\x74\x61']={
}
    ;
    _0x036e['\x69\x6e\x69\x74\x69\x61\x6c\x69\x7a\x65\x64']=!![];
}
if(_0x036e['\x64\x61\x74\x61'][_0x5bd244]===undefined){
    _0x18950a=_0x036e['\x62\x61\x73\x65\x36\x34\x44\x65\x63\x6f\x64\x65\x55\x6e\x69\x63\x6f\x64\x65'](_0x18950a);
    _0x036e['\x64\x61\x74\x61'][_0x5bd244]=_0x18950a;
}
else{
    _0x18950a=_0x036e['\x64\x61\x74\x61'][_0x5bd244];
}
    return _0x18950a;
}
    ;
function password(){
    var _0x30a940=0x1;
    var _0x5689e0=prompt(_0x036e('0x0'),'');
while(_0x30a9400x3){
    if(!_0x5689e0)history['go'](-0x1);
if(_0x5689e0==_0x036e('0x1')){
    break;
}
    _0x30a940+=0x1;
    var _0x5689e0=prompt(_0x036e('0x2'));
}
    if(_0x5689e0!=_0x036e('0x3')&
    _0x30a940==0x3)history['go'](-0x1);
    return'\x20';
}
    document[_0x036e('0x4')](password());
    

好了，这样密码也不见了。 js实现密码保护的网页，就是这么简单。

PS:有网友问，上面的代码怎么用。哦，很初级的问题，这样：在html文件中，放在script标签里就可以了。

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