使用javascript实现全排列算法

使用javascript实现全排列算法2014-09-23

var Ann = function a（arr）{if（arr.length == 1）{return arr;}var rr = new Array（）;for（var i = 0; i<arr.length;i++）{//get a copyvar ar = new Array（）;for（var j = 0; j < arr.length;j++）{ar[j] = arr[j];}//assume ivar current = ar[i];ar.splice（i,1）;var childRet = a（ar）;for（var k = 0 ;k < childRet.length;k++）{rr.push（current + "," + childRet[k]）;}}return rr;}var ret = Ann（new Array（1,2,3,4））;console.log（ret）;