题解 | #计算某字符出现次数#
计算某字符出现次数
http://www.nowcoder.com/practice/a35ce98431874e3a820dbe4b2d0508b1
转化为小写，再循环寻找
const str = readline();
const word = readline().toLocaleLowerCase();
let i = 0, j = 0
for (; i < str.length; i++) if (str[i].toLocaleLowerCase() === word) j++;
console.log(j);
