一.冒泡排序
0; i--) { //用于缩小范围
for (var j = 0; j < i; j++) { //在范围内进行冒泡，在此范围内最大的一个将冒到最后面
if (array[j] > array[j+1]) {
var temp = array[j];
array[j] = array[j+1];
array[j+1] = temp;
}
}
console.log(array);
console.log("-----------------------------");
}
return array;
}
var arr = [10,9,8,7,6,5,11,3];
var arr = [10,9,8,7,6,5,11,3];
var result = BubbleSort(arr);
console.log(result);
/*
[ 9,10,3,11 ]
[ 8,11 ]
[ 7,11 ]
[ 6,11 ]
[ 5,11 ]
[ 3,11 ]
*/
二.选择排序
var arr = [ 1,100,90,65,4,2,4 ];
var result = SelectionSort(arr);
console.log(result);
/*
[ 1,4 ]
var result = SelectionSort(arr);
console.log(result);
/*
[ 1,4 ]
[ 1,90 ]
[ 1,100 ]
[ 1,100 ]
*/
三.插入排序
= 0; j--) {
if (insert < array[j]) {
//要插入的项比它小，往后移动
array[j+1] = array[j];
index = j;
}
}
array[index] = insert;
console.log(array);
console.log("-----------------------");
}
return array;
}
var arr = [100,80,62,1,39];
var arr = [100,80,62,1,39];
var result = InsertionSort(arr);
console.log(result);
/*
[ 90,39 ]
[ 80,39 ]
[ 62,39 ]
[ 8,39 ]
[ 1,39,100 ]
[ 1,100 ]
*/
四.希尔排序
0) {
for (var i = gap; i < length; i++) {
var insert = array[i];
var index = i;
for (var j = i; j >= 0; j-=gap) {
if (insert < array[j]) {
array[j+gap] = array[j];
index = j;
}
}
array[index] = insert;
}
console.log(array);
console.log("-----------------------");
gap = Math.round(gap/2 - 0.1);
}
return array;
}
var arr = [ 13,14,94,33,82,25,59,23,45,27,73,10 ];
var arr = [ 13,14,94,33,82,25,59,23,45,27,73,10 ];
var result = ShellSort(arr);
console.log(result);
/*
[ 13,94 ]
[ 13,94 ]
[ 10,13,94 ]
*/
五.归并排序
function merge(left,right) {
console.log(left);
console.log(right);
var a = new Array();
while (left.length > 0 && right.length > 0) {
if (left[0] <= right[0]) {
var temp = left.shift();
a.push(temp);
} else {
var temp = right.shift();
a.push(temp);
}
}
if (left.length > 0) {
a = a.concat(left);
}
if (right.length > 0) {
a = a.concat(right);
}
console.log(a);
console.log("-----------------------------");
return a;
}var arr = [ 13,10 ];
[ 94 ]
[ 13,14 ]
[ 82 ]
[ 59 ]
[ 25,82 ]
[ 65 ]
[ 45 ]
[ 23,65 ]
[ 73 ]
[ 39 ]
[ 25,73 ]
[ 23,65 ]
[ 13,94 ]
console.log(left);
console.log(right);
var a = new Array();
while (left.length > 0 && right.length > 0) {
if (left[0] <= right[0]) {
var temp = left.shift();
a.push(temp);
} else {
var temp = right.shift();
a.push(temp);
}
}
if (left.length > 0) {
a = a.concat(left);
}
if (right.length > 0) {
a = a.concat(right);
}
console.log(a);
console.log("-----------------------------");
return a;
}
var arr = [ 13,10 ];
var result = MergeSort(arr);
console.log(result);
/*
[ 13 ]
[ 14 ]
[ 13,14 ]
[ 94 ]
[ 33 ]
[ 33,94 ]
[ 13,14 ]
[ 33,94 ]
[ 13,94 ]
[ 82 ]
[ 25 ]
[ 25,82 ]
[ 59 ]
[ 94 ]
[ 59,94 ]
[ 25,82 ]
[ 59,94 ]
[ 25,94 ]
[ 65 ]
[ 23 ]
[ 23,65 ]
[ 45 ]
[ 27 ]
[ 27,45 ]
[ 23,65 ]
[ 27,45 ]
[ 23,65 ]
[ 73 ]
[ 25 ]
[ 25,73 ]
[ 39 ]
[ 10 ]
[ 10,39 ]
[ 25,73 ]
[ 10,39 ]
[ 10,73 ]
[ 23,65 ]
[ 10,73 ]
[ 13,94 ]
[ 10,94 ]
[ 10,94 ]
*/
六.快速排序
var arr = [ 8,4 ];
var result = QuickSort(arr);
console.log(result);
/*
[ 5,10 ]
var result = QuickSort(arr);
console.log(result);
/*
[ 5,10 ]
[ 4,5 ]
[ 2,4 ]
[ 2,4 ]
[ 10,65 ]
[ 90,100 ]
[ 65,90 ]
[ 2,100 ]
*/
以上这篇几种经典排序算法的JS实现方法就是小编分享给大家的全部内容了，希望能给大家一个参考，也希望大家多多支持编程之家。
