leetcode每日一题：3.字符串出现最多次数的字符及次数
var str = 'sdashfaldbakbcccccccccalidalaba' function getStrNum(str) { let strAry = str.split('') let strObj = strAry.reduce((acc, cur) => { cur in acc ? acc[cur]++ : acc[cur] = 1 return acc }, {}) let max =
