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<head>
<title>菲波那切数列</title>
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<script type="text/javascript">
var x = 0;
var y = 1;
var z = x + y;
for(var i = 0; i < 1000; i++){
x = y;
y = z;
z = x + y;
if (x < 10000) {
console.log(x);
}
}
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菲波那切数列是从1开始，第三个数是前两个数的和1,1,2,3,5,8…