var str="aaisaholhosliaohgyeoahoyaghoayghotyooahhgoah";//判断字符串var arr=[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
var str="aaisaholhosliaohgyeoahoyaghoayghotyooahhgoah";//判断字符串 var arr=[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0];//a-z字母次数 function MoreAndNumber(s){ var l=s.length;//字符长度存到变量 for(var i=0;i<l;i++){ arr[str.charCodeAt(i)-97]++;//取每个字母的unicode编码减去a的unicode编码，再用数组对应的下标加1 } arr.sort(function(a,b){return a-b});//给数组排序 alert("最多的次数是："+arr[25]+"次");//输出最多的次数 } MoreAndNumber(str);//执行函数
