多个数组(数量不定)
例如三个数组 {a,b} {1,2} {d}
排列组合后为
a,1,d
a,2,d
b,1,d
b,2,d
是js的算法哦
var arr = [["a","b"],["1","2"],["d"]];var sarr = [[]];for (var i = 0; i < arr.length; i++) { var tarr = []; for (var j = 0; j < sarr.length; j++) for (var k = 0; k < arr[i].length; k++) tarr.push(sarr[j].concat(arr[i][k])); sarr = tarr;}alert(sarr.join("\n"));原文：http://www.cnblogs.com/wpbars/p/6244153.html