第8次作业-数组排序（冒泡排序）-JZTXT

var arr = [98,31,5,27,2,78];
for (var i = 0; i <= arr.length - 1; i++){
    for (var j = 0; j <= arr.length -i - 1; j++){
if (arr[j] > arr[j + 1]){
    var temp = arr [j];
    arr [j] = arr [j + 1];
    arr [j + 1] = temp;
}
}
}
document.write(arr)