约瑟夫环数字小游戏

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<!DOCTYPE html>

<html lang="en">

<head>

<meta charset="UTF-8">

<title>Document</title>

</head>

<body>

<div>

</div>

</body>

<script>

// 总人数

var _allpeople = 100;

// 幸存几人

var _survivingNum = 4;

// 死亡数字

var _dieNum = 8;

// 计数开始

var _startNum;

// 是否初次计数

var _isStartCount = true;

var a_game = function(){

var players = [];

for(var i=1;i<=_allpeople;i++){

players.push(i);

}

var flag=0; 

while(players.length>_survivingNum){

var outPlayerNum = 0,len=players.length;

if(_isStartCount){

var randomNum = Math.random()*100;

_startNum = Math.floor(randomNum);

console.log("随机数（原）",randomNum)

console.log("随机数是",_startNum)

_isStartCount = false;

}else{

_startNum = 0;

}

for(var i=_startNum;i<len;i++){

flag++; 

if(players.length<=_survivingNum){
break;
}

if(flag==_dieNum){

flag=0; 

console.log("出局人索引",i-outPlayerNum);

console.log("出局人",players[i-outPlayerNum]);

document.writeln("出局:"+players[i-outPlayerNum]);

players.splice(i-outPlayerNum,1);

outPlayerNum++;

}

}

console.log("还有几人活着",players.length)

}

var _survivingArr = [];

for(var i=0;i<_survivingNum;i++){

_survivingArr.push(players[i]);

}

return _survivingArr;

};

document.writeln("<br/>剩下:"+a_game());

</script>

</html>

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