方法一:从小到大的排序
<script type="text/javascript">
var arr = [45,64,32,90,2,12,78,93,3];
for(var i=0;i<arr.length;i++){
for(var j=i;j<arr.length-1;j++){
if(arr[i]>arr[j+1]){
var temp = arr[i];
arr[i]=arr[j+1];
arr[j+1]=temp;
}
}
}
console.log(arr);
</script>
方法二:从大到小的排序
<script type="text/javascript">
var arr = [45,64,32,90,2,12,78,93,3];
for(var i = 0; i<arr.length;i++){
for(var j = 0;j<arr.length-1-i;j++){
if(arr[j]<arr[j+1]){
var temp = arr[j];
arr[j]=arr[j+1];
arr[j+1]=temp;
}
}
}
console.log(arr);
</script>