我试图列出所有的三个字母排列组合,下面是我的代码 -
window.permute = function(){
var alphabet = "abcdefghijklmnopqrstuvwxyz";
var searchTerm ="aaa";
var position = 2;
changeString(searchTerm, position);
}
window.changeString = function(searchTerm, position){
if (position <0){
alert(newString);
return;
}
var alphabet = "abcdefghijklmnopqrstuvwxyz"
for (j=0; j < 26;j++){
var newString = searchTerm.substr(0, position) + alphabet[j] + searchTerm.substr(position+1);
var newPosition = position -1;
changeString(newString,newPosition);
}
return;
}
它不能正常工作,我不确定原因- 有人可以帮忙吗?