JavaScript的随机密码生成

http://www.oschina.net/code/snippet_54100_2953

function password(length, special) {
  var iteration = 0;
  var password = "";
  var randomNumber;
  if(special == undefined){
      var special = false;
  }
  while(iteration < length){
    randomNumber = (Math.floor((Math.random() * 100)) % 94) + 33;
    if(!special){
      if ((randomNumber >=33) && (randomNumber <=47)) { continue; }
      if ((randomNumber >=58) && (randomNumber <=64)) { continue; }
      if ((randomNumber >=91) && (randomNumber <=96)) { continue; }
      if ((randomNumber >=123) && (randomNumber <=126)) { continue; }
    }
    iteration++;
    password += String.fromCharCode(randomNumber);
  }
  return password;
}

http://www.jb51.net/article/24534.htm

function randPassword() 
{ 
var text=['abcdefghijklmnopqrstuvwxyz','ABCDEFGHIJKLMNOPQRSTUVWXYZ','1234567890','~!@#$%^&*()_+";",./?<>']; 
var rand = function(min, max){return Math.floor(Math.max(min, Math.random() * (max+1)));} 
var len = rand(8, 16); // 长度为8-16 
var pw = ''; 
for(i=0; i<len; ++i) 
{ 
var strpos = rand(0, 3); 
pw += text[strpos].charAt(rand(0, text[strpos].length)); 
} 
return pw; 
}