function sequence (a) { //排序大小
var i = j = t = 0;
for (i = 0; i < a.length; i++) {
for (j = 0; j < a.length; j++) {
if (a[i] > a[j]) {// 相邻元素两两对比
t = a[i];
a[i] = a[j];
a[j] = t;
}
console.log('i:' + i + ' j:' + j + ' 当前数组为:' + a);
}
}
return a;
}
var arr = [5, 100, 6, 3, -12];
sequence(arr);