1.冒泡排序
function Bubble_Sort (arr) { var len = arr.length; var temp; for (var i = 0; i < len - 1; i++) { for (var j = 0; j <len -i -1; j++) { if (arr[j] > arr[j + 1]) { temp = arr[j]; arr[j] = arr[j + 1]; arr[j + 1] = temp; } } } return arr; } //测试 var arr = [2,1,3,5,4,0]; console.log(Bubble_Sort(arr));//[0,1,2,3,4,5]2.选择排序
function Select_Sort (arr) { var len = arr.length; var temp; for (var i = 0; i < len; i++) { for (var j = i; j < len; j++) { if (arr[i] > arr[j]) { temp = arr[i]; arr[i] = arr[j]; arr[j] = temp; } } } return arr; } //测试 var arr = [2,1,4,3,5]; console.log(Select_Sort(arr));//[1,2,3,4,5]3.快速排序
function Quick_Sort (arr) { if (arr.length <= 1) { return arr; } var i = Math.floor(arr.length / 2); var j = arr.splice(i,1)[0]; var left = []; var right = []; for (var k = 0; k < arr.length; k++) { if (arr[k] < j) { left.push(arr[k]); } else { right.push(arr[k]); } } return Quick_Sort(left).concat(j,Quick_Sort(right)); } //测试 var arr = [2,1,4,3,5,0]; console.log(Quick_Sort(arr));//[0,1,2,3,4,5]