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<title>Document</title>
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<script>
var arr=[1,5,7,9,4,6,3,2,8];
for(var j=0;j<arr.length;j++){
for(var i=0;i<arr.length;i++){
if(arr[i]>arr[i+1]){
var tmp=arr[i];
arr[i]=arr[i+1];
arr[i+1]=tmp;
}
}
}
console.log(arr);
</script>
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</html>原文：https://www.cnblogs.com/cengzhuquan/p/13940597.html