高手来:javascript如果根据中文取拼音首字母

alert(["用","做","啊","就"].sort())

<script>

function getFrist(s){

	var a=["啊a","吧b","才c","的d","额e","飞f","个g","好h","就j","看k","了l","吗m","你n","哦o","平p","去q","人r","是s","他t","我w","想x","一y","在z"];

	a.push(s);

	a.sort(function(A,B){return A.localeCompare(B)});

	for(var i=0;i<24;i++){

		if(a[i]==s){

			if(i==0)return "a";

			if(i==23)return "z";

			if(a[i+1].indexOf(s)==0)return a[i+1].charAt(1);

			return a[i-1].charAt(1);

		}

	}

}

var str="人生大灰狼的花洒离开你的阿里三是你的很了解多少啦空间后期好健康的萨拉就开始德库拉打开了三年轮到我方法阿达撒旦确定上的爱的我大声道爱的的的权威反而个分到达得到而反而同人画要快哦皮具破坏耦合哦";

for(var i=0;i<str.length;i++){

	document.write(str.charAt(i)+getFrist(str.charAt(i))+"<br />");

}

</script>

<script>

function getFrist(s){

	var a=["啊a","吧b","才c","的d","额e","飞f","个g","好h","就j","看k","了l","吗m","你n","哦o","平p","去q","人r","是s","他t","我w","想x","一y","在z"];

	a.push(s);

	a.sort(function(A,B){return A.localeCompare(B)});

	document.write(a,"<br />");

}

getFrist("早");

getFrist("发");

getFrist("白");

getFrist("帝");

getFrist("城");

</script>